Otaku Engineer in Great Tang Dynasty

Li Zexuan went to sleep in a beautiful place, but the iron egg was still sweating outside. He is just a seven-year-old child, and it is really difficult for him to run such a long road, not to mention that he stood for half an hour before running.

When Tiedan ran to the fifth lap, his legs were a little weak. At this time, he was struggling with his legs completely relying on a strong will.

"Brother Iron Egg, what are you doing running around?"

After Lan'er got up, she wanted to find Tiedan, but was told by her servant that Tiedan was running around Li's mansion, so she came out and guarded the door. After Tiedan ran over, she asked curiously.

Tie Dan was panting at this time and his face was pale. He was really tired and didn't want to talk at all, but thinking that Lan'er usually took good care of him, he explained briefly.

"Master... let me... run!"

While speaking, he just slowed down, and after speaking, he continued to gritted his teeth and insisted on regaining speed.

"Hey, don't run away, take a break!"

Lan'er also noticed that Tiedan's expression was wrong, and hurriedly followed up and shouted.

Tie Dan shook his head, and didn't stop. He didn't dare to speak or stop to rest, because he knew in his heart that as long as he vented his breath, he might not be able to run anymore.

Lan'er followed for a while, and slowly felt tired. Seeing Tie Dan kept running away, she ignored her. The little girl stopped, stomped her feet frustratedly, gave a hum, and turned back. After leaving the yard, I no longer care about iron eggs.

……………

After getting up and washing, Li Zexuan came to the front yard and saw that he was sitting on a stool, pale and wet, holding a big bowl of iron eggs drinking water, and Lan'er and his mother were sitting beside him.

"Brother, what did Tiedan do wrong, do you want to punish him like this? Brother don't let Tiedan run, okay?"

Seeing Li Zexuan coming in, Lan'er hurriedly stepped forward and took her brother's arm, acting spoiled.

"Xuan'er, so are you, a child like Tie Dan, how can he stand such a temper."

Mrs. Li was also helping her by saying that she didn't see others endure the hardest, not to mention getting along for so long. She had already regarded Tie Dan as a half son. Seeing Tie Dan's appearance, she was also a little distressed.

Li Zexuan felt a little depressed when he was inexplicably treated as a villain by the little sister and the old lady. He touched his nose and was about to explain. At this moment, Tie Dan quickly put down the water bowl, stood up and bent over to Mrs. Li:

"Grandma Master" ("Master's mother" and "Master's father" these two special address terms, Chinese is still "absent", let's use this for the time being, you can leave a message in the book review area if you have a better one), this is Tiedan had to run by herself, no wonder Master, Tiedan thanked her grandma for caring."

Don't look at Tie Dan going crazy with the bear children in Hanjiazhuang, lawless, after experiencing so many things, staying at Li's house for so long, the human relationship is warm and warm, right and wrong, he has already distinguished clearly. The iron egg nowadays is no longer the hairy boy who didn't understand anything at the time. He respects and appreciates the elders who really care about him.

Li Zexuan rubbed Lan'er's head, and then Tie Dan said: "Mother, Tie Dan is learning martial arts, so you don’t have to suffer hardships. As the saying goes, the sword comes from sharpening, and the fragrance of plum blossoms comes from the bitter cold. , Also came here."

"The sword's edge comes from sharpening, and the fragrance of plum blossom comes from the bitter cold?" Mrs. Li muttered twice, her eyes lit up, and she said in surprise: "Xuan'er, you can still write poetry?"

When Mrs. Li was young, she was considered a lady, she had read books, and she was able to taste these two poems as top grade, so she seemed a little shocked.

"Ahem, this is what my master said, not me, not me..."

Li Zexuan waved his hand awkwardly.

He is just an engineering man, he only remembers a few poems. If he is regarded as a literary poet, what can he do if others let him compose poems in the future.

Madam Li gave her son a suspicious look, then turned and left.

……………

"One one gets one, one two gets two, one three gets three..."

In the afternoon, Li Zexuan found a room in the West Yard and used it as a classroom to teach Tiedan elementary school mathematics, while Lan Er was also watching.

In the previous life, other people gave him lectures. Now it is his turn to give lectures to others. This feels quite new, although only two little dolls are attending the lecture.

Without a blackboard or chalk, Li Zexuan was still a little uncomfortable. He could only use the two original math books that he copied in the morning, and distribute one to each of them, and then tell them one by one knowledge points. Of course, this book only contains the most basic knowledge of addition, subtraction, multiplication and division.

In fact, as early as the Spring and Autumn Period and the Warring States Period, there was a formula for multiplication. It was called "Jiu Jiu Ge" at the time. The original Jiu Jiu Ge started from "Nine Nine Eighty One" to "Two Two Like Four", a total of 36 sentences. Mantra.

But in order for Tiedan to better accept other mathematical knowledge in the future, Li Zexuan asked him to learn modern multiplication tables and Arabic numbers.

"Master, what kind of writing is this? Why do we use this kind of writing to count?"

"This is a big eclipse text. It is much more convenient to count in actual calculations. You will understand its benefits when you get used to it."

"Oh."

At this time, Xiaohe's voice came from outside the door: "Master, a white-clothed man named Wang came outside the mansion door, saying that he is looking for you to discuss a big business."

Li Zexuan was a little puzzled, why would anyone approach him to discuss business? But now is not the time to think so much, he said to Lan'er and Tiedan: "You are here to recite the multiplication table and learn the eclipse numbers. I'm back but need to check."

"Oh!" Lan'er replied with a pouting mouth, she was still angry with Li Zexuan about what happened in the morning.

"Yes, Master." The iron egg is still more honest.

Li Zexuan nodded, pushed the door out, and asked Xiao He as he walked along: "Xiao He, what business does that person want me to talk about?"

Xiao He was a little annoyed: "Master, the man didn't say. There is a woman holding a sword next to him. The woman's face is cold, as if to kill, Master, you must be careful!"

Li Zexuan was even more puzzled when he heard this. Among the people he knew, there was no such strange combination.

"Well, then we will meet them. This is at the feet of the emperor. I am still the baron of your young master. You are still worried that the woman will eat your young master?"

Since he couldn't figure it out, Li Zexuan didn't think much about it. If he wanted to meet the person in person, he knew everything.

Xiao He lowered his head and thought, yes, the young master is now named a baron, and he is considered a member of the court, not everyone dares to disadvantage the young master. When the little girl thought of this, she stopped worrying about Li Zexuan, and went to the front yard with Li Zexuan.

………………

The sharp edge of the sword comes from sharpening ~www.ltnovel.com~ The fragrance of plum blossom comes from the bitter cold. There are three theories about the origin of these two lines of poems, one is written by Du Fu, the other is written by Lu You, and the third is written by Zhu Xi. Anyway, there should be no two lines of poem in the early years of Zhenguan.

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