Li Jin, although unknowingly bent, still retains the aesthetics of a straight man, and is naturally inadvertently sensitive to those bottles and jars that wipe his face and skin care.

I can't even accept the strong powdery smell.

Brothers in the village usually dress plainly, and their hair is tied up with a ribbon or hairpin. Li Jin doesn't think there is anything wrong with that.

But the county is so prosperous that there are even specialized jewelry stores here.

The shop waiter yelled at the door: "Be objective, do you want to buy some jewelry for your wife or husband? Bracelets, earrings, everything."

Li Jin didn't want to think about Qin Muwen's appearance with Bu Yao on his head and rings all over his body.

He didn't even pause in his footsteps, and went straight forward, stopping in front of a small wood carving shop.

The ancient carving skills were very exquisite, and Li Jin also had a special liking for woodcarving.

It's a pity that in his previous life, many ancient legendary skills were lost in the long river of history.

He remembered an article called "The Story of the Nuclear Boat", which told the story of a skilled craftsman who used wood inches in diameter to make palaces, utensils, characters, birds and beasts, etc.

Earlier, during the Mid-Autumn Festival, Li Jin had given Qin Muwen a wooden rabbit.

Qin Muwen liked it very much, and he had to carry it with him every day. Later, Li Jin felt that it was a hindrance when the two of them were making it, so he asked him to take it off at night and put it on the bedside table.

As soon as Li Jin stepped into this store, he was attracted by a rather thin ribbon.

There are a few beads strung on the ribbon. At first glance, it looks ordinary, but when you get closer, you can see the micro-carved pattern on the first bead. It is a squatting rabbit with its ears pricked up.

If you take a closer look, the bunnies carved on each bead are different in shape, but each one is very naive.

Qin Muwen is a rabbit, and he is as obedient as a little rabbit.

Li Jin felt that this ribbon really matched his husband, so he bought the ribbon directly and spent the money for his one-night stay.

After buying, Li Jin went out to look up at the sky and found that it was getting late, so he went straight out of the inner city and prepared to go back to the inn.

Little Baozi doesn't know how to play with toys yet, and he will bring gifts when he grows up.

Chen Xiran was drinking porridge on the first floor. When he saw Li Jin approaching with a smile on his lips, he hurriedly finished his meal and said, "I haven't seen you so happy for a long time, but what good things did you buy?"

Li Jin nodded, "Yes, I bought it for my wife."

Since it was bought for Qin Muwen, Chen Xiran couldn't force him to see it. He just sighed: "People who are married are different. Before, I was worried that your serious face would scare your husband."

In the end, all of Li Jin's tenderness and smiles were given to his husband.

Then the two packed their bags and got on the bullock cart.With the lesson learned when they came, the two simply wrapped themselves in the quilt and leaned against the corner.

Li Jin took out the math book from the cage, and read it directly with the light from the window.

This is very different from the books he learned in his previous life. Formulas are rarely listed directly, and basically all are written descriptions.

It's no wonder that most students don't like math.

The content of the calculation is already obscure enough, and the statement of the result description is even more verbose. It will take a while to understand the concept.

A bold idea suddenly appeared in Li Jin's mind. If he followed the enlightenment mathematics in his previous life, he could combine concepts, graphics and formula calculations to compile books.

Can arithmetic be promoted faster?

After all, not everyone has the qualifications to obtain fame, and mathematics books are written so difficult that it is difficult for ordinary people to understand.

If it is possible to simplify the complexity and spread the basics of arithmetic, then even a banker can learn simple arithmetic and dial the abacus, and there will be a few more ways to make a living.

But Li Jin thought about it, in order to achieve such a level, he must first be famous, otherwise he would not be able to publish a book, and no one would take his suggestion.

Seeing that Li Jin started reading in the car, Chen Xiran shed tears of sadness, but his hands were cold, so he decided to continue to sleep on it.

Li Jin only read for half an hour before putting down the book and looking at the snow-covered mountains in the distance.

He knew that reading in the car was not good, so he took the initiative to relax after reading for a while.

Lunch is stewed chicken with mushrooms mixed with rice brought out from the inn.

The driver parked the ox cart in a teahouse by the roadside and heated up the rice with the help of a fire before presenting it to Chen Xiran and Li Jin.

The umami flavors of the chicken broth and mushrooms are fully integrated into the rice, and it is served with half a bowl of sweet-scented osmanthus stuffing.Eating such a meal in winter will warm up the whole person.

But because of the late departure today, when we returned to the town, it was already completely dark.

Chen Xiran invited Li Jin to stay at his house, and he didn't ask his servants to tidy up the guest room at night, and slept directly in Chen Xiran's room.

Early the next morning, Li Jin met Chen Xiran's parents.

Both of them are very friendly, and Chen Xiran's father has a good relationship with Mr. Song, so he knows that Li Jin cares about Chen Xiran in his studies.

"I've heard Song Xiucai mention you a long time ago, and you are indeed a good-looking talent."

"Uncle's absurd praise. The boy came here uninvited. Please forgive me for disturbing you."

"You and Xiran are classmates, so why bother? You're welcome, just tell Xiran if you're not used to it."

"Thank you uncle."

After breakfast, Li Jin bought bacon and Liuli, and went to Mr. Song's house with Chen Xiran.

Mr. Song called them to the study room and said, "Why did you come back so late? The three students of Huang Xiucai drove back overnight the day before yesterday, and they arrived yesterday morning.

I heard from Huang Xiucai that this year's county test will be done in arithmetic? "

Li Jin and Chen Xiran hurriedly shared their experiences.

But it also omitted the part where Li Jin asked Chen Xiran to "bet" together. After all, this was a trick and should not be publicized.

Mr. Song was taken aback for a moment, and his brows were filled with joy: "So, you bought the math book from the magistrate?"

Li Jin nodded: "Yes, we signed up on the first day. After hearing the news, we simply bought this book based on the idea that we should believe it."

Mr. Song: "That's good. You will discuss arithmetic with me today. Copy everything you don't understand, and ask Da Lang to bring it to me after school."

"Yes."

"Nine Chapters on Arithmetic" is one of the most widely circulated arithmetic books, and Mr. Song was talking about this book before.

A total of 240 six practical exercises and solutions are listed in it, divided into nine chapters, covering a wide range.

The arithmetic book recommended by the owner of the county book shop was not much different from "Nine Chapters of Arithmetic", except that the questions were more difficult, the classification was more detailed, and the solutions were more diverse.

However, the disadvantage is that the description is more...obscure, even Li Jin has to read this book against "Nine Chapters of Arithmetic".

Li Jin felt that this was the same as learning in her previous life, step by step, from elementary school to university.

If there is no "Nine Chapters of Arithmetic" as a basis, it will be difficult to understand this book.

After school, Li Jin said goodbye to Chen Xiran, packed his bags and walked towards the village.

Before reaching the entrance of the village, Li Jin saw a rather familiar figure. The man was wearing Li Jin's previous cotton padded jacket, but the waist and shoulders were slightly smaller.Standing quietly at the entrance of the village.

Li Jin stepped forward quickly and held Qin Muwen's hand, it was cold.

He frowned: "Why aren't you at home?"

Qin Muwen said: "Brother Zhuzi came back not long ago, and he said he saw you in the town, but you were talking to other people, and he was also rushing to deliver the goods, so he didn't call you.

But when I came back and told me, my sister-in-law also said to take the buns to her house to watch for me, and I will come here to wait for you. "

Hearing that what he said was well-founded, Li Jin was so angry that he couldn't bear it: "Don't wait like this next time, if you freeze yourself, I will feel bad."

Qin Muwen's heart skipped a beat, "Well, I see."

After returning home, Qin Muwen carefully looked up at Li Jin's expression, and said, "Ah Jin, I was wrong, don't be angry."

Li Jin put down the cage and hugged him in his arms: "Which eye of yours sees me angry?"

After a pause, he said again, "Why am I so angry at you?"

Qin Muwen also hugged Li Jin back, he was soft and sweet with the scent of milk that fed the buns.

"Ajin, I miss you."

In the two years since they first got married, Qin Muwen's biggest wish before going to bed every day was that Li Jin would not go home today.

Because once he came back, he would have to be beaten, and he couldn't cry, otherwise he would be rejected by the villagers.

But everyone in the village is a discerning person. When Qin Muwen went to wash the clothes, he saw the injury on the back of his hand and understood everything.

Qin Muwen never thought that one day he would brave the wind and stand at the entrance of the village, anxiously looking forward to Li Jin's return.

When the passing villagers saw him, they would greet him, "Is Li Jin coming back today?"

Qin Muwen nodded implicitly: "Yes."

When Li Jin heard this, he felt very satisfied. After all, he had been thinking about Qin Muwen and Xiao Baozi since yesterday.

Li Jin took out the gift he had prepared for the boy, his eyes lit up, and he put it away happily.

Li Jin said, "This is a hair tie, tied on your hair."

Qin Muwen thought about it, and put it away first, not wanting to use it directly.

Li Jin looked at his seriousness, rubbed his head helplessly, and said, "Is there any food at home? Just heat it up."

Only then did Qin Muwen remember the hot fish porridge and shredded radish in his pot.

The variety of vegetables in winter is not very rich, but the juvenile is good at cooking, and the simple side dishes are also very tasty.

The next day, when Huang Xiucai's students heard that Li Jin and Chen Xiran had bought books, they all ran over to ask to borrow them.

Li Jin and Chen Xiran were not stingy, and asked them to copy it.

The three copied a book, naturally very quickly, and when Li Jin finished school, they finished copying and returned the book to its original owner.

Originally, they wanted to give a thank you gift, but they were declined by Li Jin and Chen Xiran.

"The five of us have a feeling of mutual protection, so it's natural to say thank you."

Because Li Jin didn't perform particularly well when Mr. Song talked about "Nine Chapters of Arithmetic".

Chen Xiran thought that a down-to-earth student like Li Jin was suitable for memorization and silent writing.

But when he randomly asked an arithmetic problem that he didn't understand, Li Jin could explain it to him in no less than two ways.

Mr. Song originally listened outside the window, and planned to explain it himself when they couldn't come up with a result after discussing it.

But later, Mr. Song found himself thinking too much.

Li Jin is actually so talented in mathematics. He has only been exposed to mathematics for a short time, and he can draw inferences from one instance and draw inferences by analogy!

Mr. Song thought, why did he stand in the cold wind and eavesdrop? Wouldn't it be good if he had the time to supervise Da Lang's endorsement?

Chen Xiran's eyes on Li Jin had changed from initial surprise to very calm.

Well, resigned to fate.

He picked out questions that he didn't understand all morning, and when Li Jin stopped writing, he consciously put them on Li Jin's desk.

Then, just focus on listening.

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