"Brother Chu, look at the distribution of this desert water.

Although you and I don't know where the Huns stayed for a long time, you and I can be sure that they will be moving near the water source. ”

After being silent for a while, Zhang Yuan also had a plan in his heart, so he opened his mouth and began to tell Chu Da.

Except for the Aries King Lou Fu Wang in the Hetao area, who relied on the water source of the Yellow River, the rest of the Xiongnu tribes actually wandered near several major water systems.

Zhijushui, Anhou River, and Yuwushui should all be within the scope of Xiongnu tribal activities.

These three river systems all originate from the North Sea, but they are divided into these three large rivers when they travel from north to south.

In addition, there is a bow slave water to the east of the Wolf Juxu Mountain, if the bow slave water is not blocked by the Wolf Juxu Mountain Range, it should be integrated with the Yuwu water.

The location of the Xiongnu Shan Yuting recorded on the map is in the middle of the Wolf Juxu Mountain and the Guyan Mountain, and it is also the middle of the Gongnu Water and the Yuwu Water.

Looking at the terrain on the map, it should be in a valley with abundant water and grass.

Heading southwest from here, it should be the area where the Evil King of Hun and King Hutu are active.

There are also three water systems here, but they are not as good as the three water systems that the Xiongnu are active in.

Those three water systems are backed by the North Sea and are not worried about drying up at any time, but the three water systems of the Evil King and the King of Hutu have no roots.

Xiongnu River, Let's Wait Water, Lotus Nu Water.

To the south, there is a Junji mountain range, and there is a dragon leshui.

They were also separated from the Xiongnu Dadanyu tribe by a Yanran mountain range.

Living by water and grass should be the normal life of the Hun Evil King Hutu Wang tribe, and the Xiongnu Dadanyu tribe is much easier than other tribes because of its unique conditions.

These are all seen by looking at the map, and many place names are actually named later, but there is no way to mark them all.

Fortunately, everyone didn't suspect anything, and the Huns were called it that way, or they were called as merchants who drew maps.

It turns out that it doesn't matter what it's called, it's important to be able to eat the map thoroughly.

After Zhang Yuan explained it to Chu Da in detail, Chu Da also sketched a humane map in his heart.

The map in his mind was no longer a map with only a few place names, but a map showing the activities of each Xiongnu tribe.

"Ah Yuan, do you have any way for me to send the news out and keep it secret even if I am caught?"

Chu Da is still particularly interested in this.

People are always curious about the unknown.

"Brother Chu, take a look at the characters I wrote first, and see what they mean."

As he spoke, Zhang Yuan wrote a string of Arabic numerals on the paper and asked Chu Da to guess the meaning by himself.

"Uh, this is one?"

Chu Da touched his head for a long time, and finally could only point to 1 and ask Zhang Yuan if he had guessed correctly.

"It's one, what about the others?"

"It can't be one, two, three, four, five, six, seven, eight, ninety?"

Even if Chu Da takes 0 as ten, this answer is all guessed, and he has no bottom at all in his heart, which can be regarded as smart.

Zhang Yuanyi was sure that the first number was one, although he was a little jokingly interested, it was also the answer that was basically correct.

"It's not one, two, three, four, five, six, seven, eight, ninety, and the last one is zero.

Put one and zero together, it's ten. ”

"He's yes."

Chu Da burst into foul language all of a sudden, not because of his cleverness, but because of Zhang Yuan.

"Ah Yuan, what are you doing too, do you mean that if it is a hundred, then add two zeros after one?"

"Yes, Brother Chu, you can write one hundred and fifty-six of these characters for me."

Zhang Yuan handed the brush to Chu Da and asked him to try it himself.

As a result, Chu Da wrote 100, 50, 6 on the paper.

Zhang Yuan almost didn't vomit blood after reading it, and Chu Da is not to blame, Zhang Yuan also said it wrong when he introduced it at the beginning.

Chu Da came according to what Zhang Yuan said.

"Brother Chu, if there are other numbers above zero, you can replace zero.

Isn't there no zero, we don't need to write other numbers, 156 is the correct way to write it. ”

"Uh, oh, whoa."

Chu Da's tone began to change slowly, as if Zhang Yuan had opened a window in his head.

The abacus did not appear in the Western Han Dynasty, and the abacus appeared in the Eastern Han Dynasty.

Although the algorithm already exists, Zhang Yuan does not understand the ancient algorithm, and he does not plan to bring the modern algorithm to this era.

It is enough for these Arabic numerals to be limited to a few people who know what they mean.

Fortunately, Chu Da's undercover work does not require some calculations.

"In the future, these characters will be used to mark the number of the Xiongnu army, and how far away the Xiongnu army is."

"Since you said the location, what about the other things?"

Zhang Yuan took the brush and did not write and draw on paper, but directly wrote on the map.

He began to compare the names of places on the grassland, and began to write in simplified Chinese.

The font on the map is Han Li, in fact, the difference with simplified Chinese characters is not very big, which is why Zhang Yuan chose English letters instead of simplified Chinese characters in the four directions.

There is not much difference between the east, west, north and south of the representative direction in Hanli and the simplified Chinese characters, and anyone with a discerning eye will know what the word is when they look at it.

Zhang Yuan did the same for those place names, and if the simplified Chinese characters were too close to Han Li, then they would be replaced by initials.

This made Chu Da suffer, but it was able to ensure its security and confidentiality.

For example, the Xiongnu River, the name of this place.

The writing of the two characters Xiongnu and Hanli is already relatively close to simplified characters.

The Hungarian font is a cross in the simplified Chinese characters, and it is a person in the Han Li, which is not much different.

As for the slave, in Han Li, the female character is connected together.

There are always people who say how modern people understand words as soon as they travel to ancient times, and it's not that modern people want to understand it, and it's difficult to look so similar and don't want to understand it.

The only thing you need to worry about when you travel through the past is the accent, that is, the dialogue, as long as the text does not travel to the Qin Dynasty or earlier dynasties, the text is still relatively easy to read and understand.

For the ancients, Han Li was just a simplified Chinese character after all.

Because the two fonts are too similar, Zhang Yuan uses a lot of the first letter of pinyin, and only uses the second letter when there are four letters in the east, west, north and south, or when there are Chinese characters with the same initials, such as Gu and Gong.

Of course, if it weren't for the sake of distinction, Zhang Yuan would have been able to understand the initials of Pinyin.

But Chu Da can't understand it.

Each word corresponds to a character, and Chu Da can memorize them all by rote, but he really has to confuse some of them.

For example, Gu and Gong Zhang Yuan both use G instead, and Chu Da is easy to confuse these two words when writing.

Because there are many place names that have the words Gu and bow in them.

It may have some special meaning, and Zhang Yuan doesn't understand it too much.

Zhang Yuan had just finished writing the replaced place name, and Zhuo Wenjun had already come over to invite Zhang Yuan and Chu Da to eat.

Chu Da was still pondering the ten Arabic numerals one, two, three, four, five, six, seven, eight, and nine, and when he ate at the dinner table, he kept using his fingers to dip his fingers in the wine bottle and compare them on the table.

That serious energy really moved Zhang Yuan a little, this is really an extreme desire for survival, and of course, it also contains a desire to serve the big man.

Who is not afraid of death, if you can not die, of course it is better not to die.

Zhang Yuan was also moved by this, and gave Chu Da hope that he would try his best to grasp that little bit of light and climb it with all his strength.

That's what a normal person should look like.

For some suicides, Zhang Yuan actually didn't have much admiration.

If those who committed suicide throughout the ages were generous to righteousness, Zhang Yuanwu could only give a thumbs up and praise the national hero and the backbone of the country.

If it is for personal selfishness, Zhang Yuan really doesn't think there is anything good, you don't cherish your life anymore, how can you think about asking others to respect you.

It may be because the literati are about to preach suicide to the sky, and many people think that it is useful to have a clear will to die, at least to make a name for the ages.

Except for Zhang Tang's suicide, which directly took the lives of several enemies of life and death, the kind of suicide of the rest of the people is only the literati's pity and the kind of emotion that satisfies their hearts, in fact, it is not an exaggeration to say that it is desire.

I hope to be recognized by others, but I don't agree that I don't have any self-confidence at all, which is desire.

"Today's food is not as good as it used to be."

Chu Da frowned and complained to Zhang Yuan.

Zhang Yuan shrugged his shoulders, didn't say anything, and didn't focus on eating, so he naturally felt that any delicious food had lost its original taste.

Pulling Chu Da back to the main building, Zhang Yuan asked Chu Da to start remembering the place names and the ESWN representing the southeast, northwest and northwest.

First, he stuffed this pile of things into Chu Da's head, and then slowly stripped them all together.

That is to say, memorize the full text first, and then learn how to solve the problem.

If Chu Da hadn't been forty years old, Zhang Yuan would probably have thought about accepting an extra apprentice.

"Ah Yuan, it's not appropriate to let my brother live there, right?"

Zhang Yuan, who assigned the task, would definitely usher in a relatively relaxed period of time, leaving Chu Da alone to slowly recite the full text in the main building, and Zhang Yuan went to Zhuo Wenjun's small bamboo building.

"There's nothing out of place, it's nice if he can memorize it all overnight.

I guess Brother Chu can't fall asleep these days and nights, and it's the same if he doesn't sleep there. ”

"You are not afraid of exhausting your brother, even if it is for government affairs, don't work hard and break your body."

"Hey, life is more important than fatigue.

A few nights of not resting for a future, even I would do it. ”

Speaking of this suddenly, Zhang Yuan was a little sad.

Zhuo Wenjun didn't know about these confidential things, and he thought that Zhang Yuan was complaining.

This woman immediately scolded Liu Che, the slave owner, in the bottom of her heart, I don't know how many times.

Zhang Yuan wanted Zhuo Wenjun to move into the main building, but not now, so the two of them could only live in a small building.

Seeing the critical moment, Zhang Yuan can't be criticized by others because of his words and deeds.

This is also a compromise made by Zhang Yuan for this era.

Fortunately, Zhuo Wenjun also understands and knows that it is not easy to change.

However, Zhang Yuan has already made up his mind, on the day of his victorious return, if Liu Che does not give himself the title of marquis, then he can directly marry Zhuo Wenjun.

If he is a marquis, he will definitely treat Zhuo Wenjun as a wife.

In the absence of a second woman, Zhuo Wenjun is Zhang Yuan's wife.

No matter what dynasty or generation, things between men and women or between two people, although everyone says that as long as two people are willing, they still have to accept the test of others or etiquette.

It is not so important to be recognized by others, but in this kind of thing, Chinese seem to have never changed, as if they want to be recognized by others.

For example, Wei Qing and Zhang Yuan were both made marquises, and Wei Qing's wife and Zhang Yuan's wife Zhuo Wenjun actually had no way to enter the palace to ask Wang Wan for peace.

But as long as the family members of other liehou's families are right, they can be summoned by the queen mother.

Wei Qing is the wife of the dross, and Zhang Yuan is the daughter of a businessman.

Prejudice is like an insurmountable mountain, and you can't move this mountain even if you have the ambition to move it.

No human has done it for thousands of years.

With some sighs and sorrows, Zhang Yuan hugged Zhuo Wenjun and fell asleep.

As soon as he woke up, it was the next morning, Zhang Yuan went to see Chu Da after washing, and found that his eyes were red and he was still lying on the desk, and his mouth and hands had not stopped.

A large pile of waste paper has accumulated next to it.

Not to mention other feelings, Zhang Yuan was a little distressed, and he shouldn't have gotten some paper and ink at that time.

Wouldn't it be nice to write like this meaninglessly, just dip it in water on the floor or on the table?

It's a waste, it's a bit of a waste.

"Brother Chu, how's it going?"

Zhang Yuan raised his voice and shouted Chu Da.

The brush that Chu Da was holding in his hand fell down suddenly.

"Oh, Ah Yuan, you're back, it's dawning outside."

"Yes, Brother Chu, do you remember?"

"Almost, I have engraved these characters in my heart, and I will never forget them in my life."

Chu Da said sincerely, Zhang Yuan knew that he had completely remembered it.

"Okay, just remember it, and I'll teach you how to express it.

Two hundred and fifty miles southeast of Daze, three hundred and sixty miles northeast of Juyanze, you write it down on paper. ”

This is a more accurate positioning method that Zhang Yuanxin came up with.

Since there is no compass to determine the angle, then you can rely on two references to determine the angle of the bearing.

The two lakes are one point, draw a line on the map representing two hundred and fifty li and three hundred and sixty li, and then the two points of the two lakes do not move, move the other end, and the place where the two ends of the two lines meet is the location information that Chu Da wants to express.

When Zhang Yuan came up with this method, he was a little skeptical that his brain was mentally retarded, and he had almost forgotten all the things he had learned in the nine years of compulsory education in his previous life.

In fact, a lot of knowledge has a great effect on Zhang Yuan now.