"Father! This is indeed different from the previous bicycle, this is the latest second-generation variable disc brake bicycle developed by the Qiqu Pavilion Workshop, which has just been sent to the palace by the Marquis of Yong'an, and he asked his sons to give it to his father on his behalf! ”

In the Ganlu Palace, Li Er walked down from the dragon couch at the top and looked at the bicycle with a curious expression, Li Chengqian hurriedly explained.

The bicycle that Li Zexuan gave to Li Er is naturally different from other variable speed bicycles, this difference is mainly reflected in the appearance, Li Er's car is scalded with a five-clawed golden dragon pattern, representing the ninety-five supreme, and only Li Er can ride in the whole world!

"Shifting? Does that mean the bike can also change speed? ”

When Li Er heard this, he immediately wondered.

"Ugh! This, Erchen just studied it privately, Yongan Hou Xin's variable speed bicycle is driven by the pedal chain, the chain drives the rear wheel to rotate to move forward, the rear wheel is installed with different number of large and small pinions, and the chain can be put on different gears through the speed controller on the handlebar! The smaller the number of teeth on the rear wheel, the greater the gear ratio, and the more turns the rear wheel will turn when you press the pedal once, and the faster the bike will run! ”

Li Chengqian hesitated for a moment and explained to Li Er.

It can be seen that before this, Li Chengqian could be regarded as having done some homework, otherwise Li Er would definitely not be able to answer when asked at this time!

Different from Li Tai and Li Ke, although Li Chengqian is more interested in the engineering of Yanhuang Academy, he is the prince of a country after all, and he is usually busy helping Li Er deal with government affairs, and in terms of engineering, he naturally does not know as much as his two younger brothers, so if he wants to explain the principle of the transmission bicycle to Li Er, he must do his homework in advance!

After hearing this, Li Er glanced at Li Chengqian in some surprise, and then said with a smile: "Hehe! Didn't you see it, Cheng Qian, you know so much about engineering? ”

Li Chengqian was a little embarrassed and said: "My father has won the award, but in fact, the sons and daughters don't understand this, but before I came, I consulted a few gentlemen who know how to study!" Xiao Xuan not only gave his father a bicycle this time, but also sent one to Erchen and Changle! Erchen also sent someone to inquire, Xiaoxuan's Yanhuang Chamber of Commerce only started selling this kind of chain-driven bicycle today, an ordinary, bicycle without a transmission function sells for 599 guan, like this kind of speed function, today the Yanhuang Chamber of Commerce only sells three, and the price of each car is as high as 1,199 guan! ”

"Huh! You're being honest! But that kid sells the bicycle for such an expensive price, it's really a bit of a profiteer's nature! ”

Li Er glanced at Li Chengqian with some appreciation, but while saying that Li Zexuan was a profiteer, he looked at the bicycle beside him with appreciation. Then he said, "This shifter bike is really good, I'll take it!" However, neither you nor Changle have ever practiced martial arts, so you have to be careful when riding! ”

If this was left in the Song and Ming dynasties, and there was a new thing like a bicycle, the emperor would definitely not allow his children to ride, because it would damage the royal majesty. But the Tang Dynasty was a very open dynasty, and the Li and Tang nobles were actually quite influenced by Hu Feng, for example, the nobles liked to eat mutton, but did not like to eat pork and chicken, it was precisely because of this open atmosphere that Li Er did not prohibit Li Chengqian and Changle from riding bicycles!

Li Chengqian smiled and said, "Thank you for your concern!" It is true that Erchen does not know martial arts, but his father may have forgotten Changle that she is not only better now, but also knows some internal kung fu, so my father doesn't have to worry too much! ”

Li Er couldn't help but be stunned when he heard this, he really forgot that Li Li's temperament was already good, sometimes when guarding a person becomes a habit, even when that person becomes strong and doesn't need to be guarded, you still can't help but care about her and protect her as before, Li Er belongs to this situation for Changle!

"Your Majesty, Princess Changle and Princess Gaoyang ask to see you!"

Li Erzheng was in a trance, and Zhao Song walked in again, bowed and said.

"Oh? Let them in! ”

Li Er came back to his senses, and his face couldn't help revealing a touch of warmth, and he hurriedly said.

"Whoa!"

Zhao Song took the order and left.

After a while, Changle walked in with a happy face and a little girl carved in pink.

"Father! Father! Gao Yang misses you! ”

As soon as she entered the hall, Changle didn't have time to greet Li Er, and the little girl beside her ran forward and hugged Li Er's arm and said coquettishly.

The little girl was about three or four years old, with a handful of pigtails, and she looked very cute.

This is Princess Gaoyang, who will cuckold Fang Yi's love in the future!

Li Er couldn't help but rub the little girl's head, and smiled lovingly: "Haha! Is it? Father also misses our Gaoyang! ”

After saying that, Li Er lifted Gao Yang up and kissed it, and the little girl with stubble on his face suddenly hurriedly tilted her head back.

After teasing Xiao Gaoyang for a while, Li Er looked at Changle and asked:

"Huh? Changle, why did you come to your father today? ”

Changle said softly: "Father, Changle just tried to ride the bicycle sent by Brother Xiaoxuan, and found that this variable speed bicycle is more than ten times better than the previous bicycle, but Changle in the palace is a little tired, so he wants to ride a bicycle to Chang'an City, and I have come to ask my father for permission!" ”

"Father, Emperor, Emperor! Gao Yang wants to take Sister Changle's car! Gao Yang also wants to go out of the palace to play! ”

At this time, Gao Yang tugged Li Er's big hand, and said in a milky voice.

Seeing that the two little angels were looking at him with burning eyes, Li Er couldn't bear to refuse, he pondered for a moment, nodded and said, "Hmm! That's fine! Go for Changle! But you must go back to the palace before the unitary time! ”

Changle said happily: "Mmmm! Father rest assured, Changle just went to the Nuan Tang Foundation to talk to Sister Yuxi, and he won't go too far! ”

Li Er nodded.

Changle retired with Gao Yang's blessing body.

Li Chengqian looked at the back of his sister leaving, then looked at Li Er with a worried face, and said, "Father! Do you want your sons to send some people to protect Changle and Gaoyang? ”

For his younger sister, Li Chengqian has actually always loved him very much.

Li Er waved his hand and said, "No need!" I'll let Zhao Song take care of it for a while! You're busy with your go! ”

When Li Chengqian heard this, he immediately relieved his heart, and he arched his hand and said, "Yes!" Sons and daughters retire! ”

Li Er nodded at Zhao Song at this time and didn't speak, but Zhao Song had already understood what Li Er meant, and hurriedly gave up!

In the main hall, Li Er set his eyes on the variable speed bicycle again, and the more he looked at it, the more he liked it, men love cars, this may be regardless of the times.

"Humph! This kid doesn't hurry up and do the right thing, and clean up some crooked ways, it seems that he has to find time to knock and knock this kid! ”

Li Er's ability to achieve this position now proves that he is not a person who is greedy for pleasure, although the bicycle made by the Strange Pavilion Workshop is good, but in his opinion, this is just a small road, and he has the world in his chest, so, after a while, he couldn't help muttering to himself.

………………………………

"Ugly cow, tell the old man, what secret project has your academy been working on recently?"

Two days later, on Friday, Cheng Chumo was born in martial arts, his recovery power was several times better than that of ordinary people, and the injuries on his body had basically healed, so he naturally had no reason to continue to stay in Yanhuang Hospital, thinking that he did not go home because of a "car accident" last week, so Cheng Chumo went home this Friday afternoon.

After dinner, Cheng Yanjin called Cheng Chumo to the study and asked mysteriously.

Well, that's right! Lao Cheng's family also has a study!

The more some people lack something, the more they like to fiddle with it! Cheng bit Jin lack of culture, so he also got a study at home, and also collected a lot of good books, but the dust on those books is estimated to be an inch thick, he originally expected his two sons to be able to read and improve, but later it turned out that he was thinking too much, so the books on the bookshelf were even more unturned, and this study naturally became a temporary meeting room at home.

"What? What's the secret project? What are you talking about, Dad? ”

After Cheng Chumo listened to Cheng Yanjin's question, he was confused, saying that he was "sister" in Yanhuang Medical Hall this week, how did he know what happened in the academy? He didn't even know that Li Zexuan had included him in the list of participants in the secret project in order to help him cover up the "car accident"!

But Cheng Bites Jin doesn't know this! He also thought that Cheng Chumo, like Li Zexuan, wanted to keep the project strictly secret from outsiders, so he couldn't help but stare at the bull's eye and said angrily: "You stinky boy!" Lao Tzu is your father, do you still want to keep it a secret from me? Do you and I seem to be the kind of people who don't keep their mouths open and are prone to revealing secrets? ”

Cheng Chumo was even more stunned by Lao Cheng's yelling, and he was a little skeptical that his father had taken the wrong medicine today, "Dad! What keeps secrets? What secrets do I have to keep? I'm your son, what secrets can I have in you you don't know? That dad, you seem to be the kind of person who doesn't keep the door open, I used to peek at Baolin and watch Widow Zhang take a bath, and you told him about it! It hurt that Pauline and I couldn't go out for a while."

Cheng Yanjin was almost so angry that he vomited blood, his old face was as black as ink, and he couldn't help but roar angrily: "Shut up!" What a mess! Lao Tzu will talk to you about the secret project of Yanhuang Academy, you kid don't talk to Lao Tzu about anything else, and don't pretend to be confused with Lao Tzu! Xiao Xuan has already told the old man, you have been busy with that research project recently, so you didn't go home last weekend! ”

"Gah?"

Cheng Chu was stunned when he heard this, thinking of the fact that he asked Li Zexuan to help him hide the car accident from Cheng Yanjin before, even if he was stupid at this time, he knew what was probably going on, "Uh, Dad!" That's what you're talking about! I can't tell you that the students of the college must keep the affairs of the college strictly confidential, and must not disclose them to anyone, not even their families! This is the rule! Dad, don't embarrass me! ”

Cheng Chumo was also the one who had memorized the "Yanhuang Academy Confidentiality Regulations" and passed the Yanhuang Academy's confidentiality examination, and his thoughts turned sharply in his mind, and he quickly came up with a set of prevarication rhetoric to prevaricate Cheng Jin.

In fact, if he could, he would rather not prevaricate, because this is playing with fire! But the problem is that he doesn't know what the secret project Cheng Yanjin said is, so he can only find a way to prevaricate!

Sure enough, when Cheng Yanjin heard this, he was so angry that his eyes were bigger than the copper bell, and his eyes were about to burst into flames, he slapped the table, got up and roared: "Son! Bastard thing! I see your wings are stiff now! Dare to deliberately pretend to be confused and tell lies in front of your father, see if Lao Tzu doesn't beat you to death today! ”

Cheng Chumo felt bitter in his heart, he wasn't pretending to be confused, he was really confused!

Seeing that Cheng Biting Jin was about to beat someone, Cheng Chumo jumped up from the chair in advance with great experience, and then ran out of the house without looking back, and shouted as he ran:

"Mother! Help me! My dad is going to kill someone! He was angry and angry, and he wanted to kill his relatives in righteousness! ”

"Mountain Chief, do you think this is done?"

The next morning, Li Zexuan came to the workshop again to inspect the progress of the killer project, and Li Tai came over with a cone-shaped iron cylinder and handed it to Li Zexuan and asked.

Li Zexuan took the conical iron cylinder and said suspiciously: "This is the megaphone I told you before?" ”

Compared with the tour guide megaphone hanging on his waist in his previous life, this thing Li Tai brought was a little too bloated, about 1.5 times the size of an ordinary tour guide megaphone, and the appearance was also a little ugly, which made people a little "can't get off their mouths"!

"Uh, Shan Chang, this thing is just a sample for experiments, it does look a little ugly, but it still has some effect, why don't you try it?"

Seeing that Li Zexuan's face was a little disgusted, Li Tai said a little embarrassed.

Hearing Li Tai say this, Li Zexuan glanced at the megaphone in his hand suspiciously, then he raised the megaphone to his mouth, hesitated for a moment, and shouted: "Hey, hey, hey!" ”

"Hey, hey~!"

Li Tai, who was standing in front of Li Zexuan, had just forgotten to retreat to the side, and at this time, he suddenly felt a huge sound rushing towards him, and he hurriedly covered his ears and ran to Li Zexuan's side!

"Huh? Although the timbre is a little rough and not delicate enough, the amplification effect is still okay! ”

Li Zexuan also heard the sound coming from the loudspeaker at this time, and he couldn't help but be a little surprised.

Hearing this kind of words from Li Zexuan's mouth, the little fat man was immediately very happy, and he hurriedly said: "Mountain Chief, so the speaker I made is qualified?" ”

Li Zexuan nodded and said, "Hmm! It's basically up to the mark! In the later stage, you only need to debug the sound effects! Qingque: You can make such an experimental model of a speaker in just a few days, which is quite remarkable! ”

After that, Li Zexuan gave Li Tai a thumbs up!

This is true, he really didn't expect Li Tai to make a rough megaphone in such a short time.

Li Tai was suddenly happy like a two-hundred-pound child, and he didn't know where to put his hand, only to hear him laugh and say, "Hehe! Not either~! The mountain chief has won the award, and the award has passed"

……………………………………