Early in the morning of February 12th, 0001.

Medieval World, Ekri's Village, Church.

The sun was about to come out, and the sky was flushed with a faint flush, stepping on the path paved with stone slabs among the weeds, Wu Qingchen stepped on the steps and appeared at the door of the church.

“75…… 76…… 76…… 76……”

On the left side of the church, a young man is grabbing rags and wiping tables and chairs, while reciting words with a sad face.

Hearing the movement at the door, the young man's frowning brows instantly relaxed, and the joy from his heart suddenly surged into his face, and he turned around quickly, and the young man's voice was full of relief: "Good day, Los!" You're finally here! ”

"Good day, Andrey...... It rained the other day and the bridge near Avilia's house was a bit loose again, and it took a little time to pile up the stones......"

Smiling and greeting the only student of the current Vicarian of Praia, Wu Qingchen/Los walked into the church, naturally turned to the right side of the church, picked up a broom from the corner, which was rare in the entire village of Ekri, and joined the usual early morning cleaning.

“1，2，3，4…… 8, 9, 10 ...... "On the right side of the church, waving a broom to sweep the stone slab on the right side of the church, Wu Qingchen read out a number every time he took a step, and soon read from one to ten.

“1，2，3，4…… 8, 9, 10......" On the left side of the church, after Wu Qingchen finished reciting, little Andre immediately followed, and every time the rags in his hand were wiped on the tables and chairs, he read out a number.

“11，12…… 19,20...... "Little Andre had just finished reading, and Wu Qingchen immediately entered the next round of stepping, cleaning, and reading.

The second round of "11......" Andre Jr. also began.

"57,58,59,60......" When he read this, the first row of stone slabs on the right had been cleaned, and dragging a broom, Wu Qingchen walked to the aisle in the middle of the church.

“52，53，54…… 55…… 54…… 55…… 55…… 55……”

followed by the reading of "54" and "55", little Andre suddenly froze, his mouth was full of words, and the rags in his hands stopped unconsciously.

From the combination of words and phrases such as "small water", "small water", "middle water", "sleeping water" and "diving", which made Wu Qingchen want to die, it can be seen that the language and writing used in the medieval world, or the sphere of influence of the god "dominant", was a phonetic writing system with phonetics as the main means.

The biggest advantage of this phonetic system is that the core pronunciation vocabulary is low, easy to learn, and adaptable to different things.

With a small number of core nouns, such as "water, fire", with the same small number of core verbs, such as "sleep, jump", and then with a smaller number of core adjectives, such as "large, medium, small", you can combine them with each other according to your needs, and you can compare the type, state, and scope of most things...... and so on to make a satisfactory description for the natives of the medieval world.

And this way of memorization, and such a combination, while being convenient in other aspects, easily planted a large part of the disadvantages on the head of "mathematics".

These drawbacks, as far as little Andre can feel at present, are that the larger the value of the number, the longer the pronunciation will be, the higher the difficulty of memorization, and the more painful the feeling of recitation.

"56 ......" waited for about ten seconds, but Little Andre still couldn't get the result of "5", Wu Qingchen gently reminded him.

"Oh! Yes, yes, yes......" After suddenly screaming, little Andre recited it smoothly.

“54、55、56、57、58、59、60……”

This is the reason why little Andre will be doubly happy when he sees Wu Qingchen appear in the morning.

When all the stone slabs of the church were cleaned, the "50-100" course that the pastor had "just taught" half a month ago had completed another round of review.

Next, Wu Qingchen also took a rag and began to help little Andre wipe the table and chairs, and by the way, he began to help little Andre review another course of "holy words".

When the cleaning work and the "review subjects" of little Andre were all over, the first rays of the morning sun shone in the door of the church.

"Alright, it's pretty much the same......"

Glancing around the church with satisfaction, little André put the rags in his hand back in place.

"Now, it's almost time to prepare the stream......," he said, and little Andre approached the pulpit, and together with Wu Qingchen, moved down the water altar placed above.

The two of them worked together to move the water altar out of the church, poured the "leftover water" from the previous day into the weedy at the stone steps at the entrance, and then followed a path that sloped down to the stream.

After washing, filling the water, and drying the surface with the robes, the two men lifted the water altar again and walked back to the church.

When he walked about a dozen steps from the stream, Wu Qingchen, who was walking on the right, held the arms of the water altar and suddenly felt a slight trembling.

Here it comes!

This is a slight tremor from little Andre.

This is Wu Qingchen's mental preparation, or the slight tremor that has been waiting for a long time.

This path connecting the church and the stream, where Wu Qingchen and Little Andre are standing at the moment, is about a meter in front of it, and the place where the two of them must go back has a natural formation, which is much higher than the rest of the entire trail.

This level of mud steps, Wu Qingchen is quite familiar.

It was yesterday afternoon, or rather, on the afternoon of May 13, 2012, Earth time.

At this level of mud steps, Wu Qingchen had already gone up and down twenty or thirty times in the corresponding position of the Earth's "Ikeli Village Simulation Base".

The target is exactly the slight tremor of little Andre at the moment.

Or maybe I fell here, or I almost fell here, or I was simply afraid of this height......

Using the highest precision cameras, the highest precision motion capture cameras, and other related instruments with the highest precision, the Earth team can accurately calculate the diameter of every piece of grass, the volume of each piece of sawdust, and the expression, heartbeat, and respiratory rate of each person...... and the state of mind they represent.

Companies around the world that have the ability to produce these instruments have been urgently requisitioned by governments around the world, and massive amounts of materials have been deployed to work overtime to produce, and every instrument that has just stepped off the assembly line will be delivered to the most important institutions as quickly as possible.

In addition to these most important institutions, the earth also set up countless similar institutions at the same time, and used slightly inferior or slightly inferior equipment to analyze everything that Wu Qingchen experienced in the medieval world from multiple angles, every second and every frame.

Thousands of such institutions have found:

Since Wu Qingchen was asked by the pastor to participate in the cleaning of the church and the preparation of prayers, when Wu Qingchen and Little Andre passed by this position at this moment, Little Andre would show considerable nervousness almost every time.

At the same time, the different levels of tension that are shown when going uphill and downhill, the direction in which the eyes are looking involuntarily, and the subconscious protection of the water altar when nervous