The girl held the shuttlecock in her hand, lost in thought. Though it was an unexpected delight, it was hard-won. She looked at the porcelain doll with lingering reluctance, her face a picture of inner turmoil. After a moment, her lips moved, but she resolutely turned away, making a firm decision:

"Big sister, this is what I got myself, it's what I deserve. Grandpa said I can only take one, so I'll just take what I'm entitled to!"

What a logical and clear-headed child! She simply follows the rules and regulations and is willing to take responsibility within her capabilities. The girl is planning to give up the porcelain doll. Such a sensible girl is heartbreaking.

Jiang Shuya crouched down and beckoned with her finger:

"Young lady, I think you are very understanding. Today is the second day of the Lunar New Year. I really like you and would like to be your friend. Do you agree?"

The little girl blinked, glanced at her grandfather, and then made her decision. She nodded, her eyes crinkling, and reached out to hook her finger around Jiang Shuya's hand.

Happy New Year, sister.

Jiang Shuya smiled and handed over the porcelain doll in her hand, saying:

"This is a New Year's gift from your sister. I wish you a happy new year and all your wishes come true."

The little girl happily accepted the porcelain doll, her whole being beaming with joy. She kept looking at her grandfather, having passed his test and received what she wanted most. She even shared with Jiang Shuya what gifts she had received in the New Year.

The stalls were constantly filled with customers. Parents and children stopped to look around, attracted by the exquisite goods.

After a long time, the stall was surrounded by a crowd. People paid one after another to get rings and play the game. Those who didn't hit the rings didn't leave. They cheered for those who did. Every ring that was thrown was met with cheers. For a while, there were shouts of surprise, frustration, and stomping of feet.

The little girl stood to one side, clutching the pink porcelain doll in her hand, moving back and forth across the stall to help Jiang Shuya pick up the fallen colorful rings. She was happy to help, her movements nimble and free. Her grandfather sat opposite her, playing chess with someone he knew, his eyes constantly scanning the stall.

Busy time passed quickly, and before we knew it, it was afternoon. The little girl had to go home with her grandfather and said goodbye with reluctance.

Jiang Shuya's stomach started growling. She looked up and saw a rice noodle stall across the street. She called out to the stall owner and ordered a bowl of rice noodles. The middle-aged woman responded quickly.

A moment later, a smile played on her lips as she brought over a bowl of rice noodles. She didn't forget to examine the goods on the stall, exclaiming repeatedly, "Wow, beautiful lady, you're really generous! These items look quite valuable. Aren't you afraid customers will steal them and you'll lose everything?"

Jiang Shuya smiled knowingly, offering a tacit response:

"Who would buy something if it's not appealing? If the product is good, people will be more willing to invest. People don't appreciate things that are too easy to get. Most people are willing to pay for things they like."

"That's true, it seems like you're not wrong."

The middle-aged woman glanced at the toy gun, hesitated for a moment, and then pointed at it:

"My second son asked me for a toy gun a few days ago. That gun must have cost a lot of money!"

Jiang Shuya glanced at the realistic smart toy gun and responded with a smile:

"Yes, that's right. I bought this gun for over two hundred dollars, and no one has been able to take it yet. You can let your second son give it a try."

The woman glanced at the toy gun again, nodded in response, and walked away.

The fragrant rice noodles in her hand were fresh, smooth, and delicious. Jiang Shuya quickly finished a bowl and was still not satisfied. Just as she was about to have another bowl, another group of people came to the stall, a few big boys.

After looking left and right at the stall and finding a spot, they paid the money, took dozens of colored rings, and threw them at their target.

After one round, the tall boy left the field with a frown, and another short boy came up and quickly threw at the toy gun. In a short while, he also failed to hit the target and left the field dejectedly.

After several rounds of switching, the boys came up empty-handed. The tall boy picked up the colored rings from the ground, carefully examining them and trying to figure out the secret behind their inability to hit the target. After a moment, he came to a conclusion:

"Sister, this ring you're using must be made of a flexible composite plastic material. When it touches the ground, it bounces back naturally from the object. It must be specially designed for ring toss games. If you replaced it with an iron ring of this size, I'd be able to hit it every time."

Jiang Shuya patted his shoulder and asked:

"You're in middle school now, right? You should be learning physics by now. Do you practice this regularly?"

The boy answered:

"No, but I play basketball often, and I'm very accurate with my shots, almost always hitting the target."

Jiang Shuya nodded in approval:

“Very good. Although the items are different, the goal is the same. You have gained nothing from me today, so you must think there is something wrong with my colored ring. Since you have already been exposed to physics, you should know that.”

It is a plastic "man-made high-molecular organic compound" whose raw material comes from resin.

As for the principle, the temperature in the air changes when it hits the ground. In cold weather, it hardens upon contact with the ground first, and then it bounces. The bounce depends on the force with which you throw it. Now, do you still think your throwing technique is good enough?

The boy stood there blankly, as if being lectured, completely unmoved, until Jiang Shuya continued:

"First of all, what you're holding in your hand at school is a basketball. A basketball weighs about 500 grams, and it's not made of iron, right?"

Since you say your shooting technique is 100% accurate, that means you're very familiar with the weight in your wrist. Practice makes perfect. If you asked your teacher to let you try something heavier or lighter, see how it goes.

Finally, he patted the boy on the shoulder and said:

"The weight of the basketball cannot be changed, and I cannot break the rules of this game at will. Before you came here, a girl about your age shot at the very back lifelike doll."

She'd never learned pitching or basketball, so maybe she got lucky, but her shot hit the target perfectly. Do you think I'd reject her just because she was lucky?

The boy pursed his lips, scratched his head sheepishly, and didn't say anything. He then took out a hundred-yuan bill from his pocket and said:

"Sister, I want to try again."

Jiang Shuya waved her hands repeatedly and shook her head, saying:

"I'll give you thirty hoops. If you can hit them, I'll still give you the prize. If you still don't get anything, go back and study hard and keep practicing."

The tall boy happily accepted the colorful ring, then cautiously stood a meter away and aimed it at the last toy gun.

After throwing more than ten times without hitting the target, his companion beside him became anxious:

"Awen, we're almost out of rims, throw closer, it's better than nothing!"