Lu Zhengkang found that one of his deciduous teeth was about to fall off. It's the left incisor. The gums are swollen and painful. It should be that the permanent teeth are about to grow out.

There's nothing to say. After all, it's a little trouble that everyone will experience. Lu Zhengkang only hopes that his new teeth will be neat.

Today is the second day when I came to my grandfather's house. I got up early and found that all three of my friends had sent e-mails. Su Xiangli had already arrived at the destination, Zhang yingxuan had a night off, and Qiu Qiongzhu seemed to have encountered some small problems.

The breakfast Lu Xuefeng prepared for him was pickled rice in soup. He was satisfied with yesterday's leftovers. After dinner, the old man said he had work to do and left with his hands behind.

Mr. Zheng came to visit again at 9 a.m. with a Sketchpad and a climbing bag on his back. He was very trustworthy.

As soon as he came, he put his things away, went to the refrigerator and poured a bottle of beer into his stomach. After drinking, he was the handsome ruffian again, and asked Lu Zhengkang to learn painting from him.

Starting from sharpening pencils, Mr. Zheng holds a pen in his right hand and a knife in his left hand, carefully sharpening and cutting. He remembers, "when I was learning to draw, all my classmates were lazy and gave me pencils to sharpen. What does that mean?"

Lu Zhengkang How do I know what it means.

"Ah, it shows that my pencil is the best. You see, it's bright, sharp and moist."

Lu Zhengkang I think it's just average.

Mr. Zheng peeled one and handed the art knife to Lu Zhengkang. "Come on, try it. In your online class, those pens are all prepared by software. In fact, it's not as good as cutting them by yourself. You'll understand if you try more."

Lu Zhengkang Is it really OK to give the knife to the child?

The oil head monster went to the refrigerator to get wine again. Lu Zhengkang cursed him for getting beer belly.

All morning, until Lu Xuefeng came back, Lu Zhengkang sharpened dozens of pencils. As soon as the old man saw that his great grandson was playing with the knife, he snatched it. "Don't play with this, children. It's very dangerous."

"Mr. Zheng told me to sharpen pencils."

"He will sharpen your pencils for you in the future, Aung."

Mr. Zheng raised his hand, but Lu Xuefeng didn't pay any attention to him. He is now pedaling a pair of rubber shoes. The high uppers are full of mud spots. He walks step by step. The vegetable basket in his hand is clean and fresh, and the fruits and vegetables in it are also lovely. The old man puts a full peach in Lu Zhengkang's hand, "go, wash and eat under the tap."

Oil head Monster: "I want to eat peaches, too."

"You're going to eat shit." Lu Xuefeng turned his head and said, "don't speak dirty words like me, young child, please."

"High!" Lu Zhengkang nodded and walked into the kitchen with a peach in his hand.

Then he found that the sink was too high for him to reach.

Lu Xuefeng stinks and criticizes youtou Zheng. All kinds of dirty water are splashed on him. What's going on is slack, what's sinister, what's lazy, and so on. That's why a bunch of white cotton has to be dyed into briquettes. Comrade Zheng just goes to the refrigerator and takes another piece of beer to dry.

In the middle of the drink, the oil head monster looks into the kitchen, rushes up from the tail vertebrae and sprays out all the wine in his mouth.

Lu Xuefeng said: "now I have no ability. I can spray wine."

"Look at your grandson!" The oil head monster left the bottle and rushed to the kitchen. The old man took a look. On the high sink, a small bean was squatting, with its heels hanging.

Xiao Zheng took Lu Zhengkang down and said, "it's frightening!"

Lu Zhengkang raised the peach in his hand, "uncle, eat peach."

The freshly washed peaches are fresh and delicate. After the fine hairs on the surface are rubbed clean, there is a beauty of a lady unloading her clothes. Comrade Zheng sniffs it. The aroma of the fruit is like an ice cellar in the heat, penetrating to the bone.

The old man put the peach in Lu Zhengkang's hand into Xiao Zheng's, and then took the child over. Lu Xuefeng's muscles and bones were tight, and the back of his classmates was sore.

"Tell me, how did you get up there?"

"Up there." It's actually a jump.

Lu Xuefeng pick eyebrow, put Lu Zhengkang on the ground, "after not allowed."

"Oh." If you know your mistakes, you will admit them.

The old man laughed and patted Lu Zhengkang's cerebellar melon seeds, but he didn't want to take out Lu Zhengkang's front teeth.

"Poof --" Comrade Xiao Zheng sprayed rice for the second time today. The broken peach dregs rushed into his nose and almost choked him to death. "Old man, you're so damn hard

Lu Xuefeng's face was shocked: "God's mother, I'm cruel, little devil, are you ok?"

Lu Zhengkang picked up his deciduous tooth. It was a small one. Eh, how could it not fall early or late? Was it really interrupted by the old man's slap?

"It's OK, it's OK." Lu Zhengkang covered his mouth and said something.

Lu Xuefeng laughed, "which one did you drop? Upper or lower teeth? "

"Front teeth."

"Upper teeth, OK. Let's go. The Lord will take you to throw your teeth away."

Comrade Xiao Zheng raised his hand."Let it go."

"What's the age of superstition? Just throw your lower teeth on the roof and your upper teeth on the bottom of the bed!"

"A dog can't spit Ivory out of its mouth. Shut it up!"

Lu Zhengkang has a helpless face. His mouth is really fragrant. It is estimated that his low social credit rating also has this reason. If he behaves rudely, he will be deducted points.

After burying his first old tooth in this life, Lu Zhengkang suddenly had a sense of vision. He would also have such an experience in his previous life when he changed his teeth. At that time, his father told him that everything had its first time. After that, he would not come back. It's like a bottle of water, you have to drink it when you open the lid, a can and a bag of paper. It's two states whether things happen or not.

Lu Zhengkang thought that if he had no previous life memory, it would be his first time to change his teeth, but since he still remembered his previous experience, it would not be his first time.

Can the past life really count as the past? The trace of my existence has disappeared in history. A person who does not exist in the past appears in the future. How can we determine which time and space it belongs to? The speed of the solar system in the universe is more than 200 kilometers per second, so the space where I used to live is already vast and deep

Does thinking determine human existence, or does existence determine human thinking?

He thought and began to wander again.

Lu Xuefeng looked at his stupefied great grandson and thought to himself: can this child become a thinker in the future?

……

Lu Zhengkang discovered Xiao Zheng's big secret.

The palm of his right hand is a bionic mechanical structure.

The artificial hand can be as flexible as the real hand by controlling the bionic neural network of the manipulator with the chip implanted in the spine. However, due to the lack of fineness of the mechanical transmission structure, some operations can not be done.

Except for his thumb, Xiao Zheng's right hand is a mechanical prosthetic. It is usually covered with artificial leather, and there is no difference in appearance. However, this thing has to be lubricated after a period of time. Lu Zhengkang saw that Xiao Zheng took off his fingers one by one with his back, and then operated and adjusted it with one hand.

From the cross section of the prosthesis, we can see many aging metal parts, and also stained with gray and turbid strange liquid. I don't know whether it is oil or human excretion.

Xiao Zheng likes to drink. When he gets drunk, he can forget the pain and only drink beer, because he promised others not to get drunk.