The doll is soft and delicate, and her skills are at the top of the 70 exam

Qi Tianyu jumped up and exclaimed, "Leaping frog!"

"Yeah, someone knows." Zheng Gong smiled, "Here, let's play with it."

Jiang Mengmeng looked at Qi Tianyu curiously, "How do you know this is a jumping frog?"

Qi Tianyu was particularly embarrassed, "Because I have one, I bought one at the Friendship Store yesterday, and it cost me a dollar."

Jiang Mengmeng smacked her tongue, "It's so expensive."

"Grandpa is back, it's fun," Zheng Gong gave the toy, and pushed the bicycle to find his wife. .

"I'll teach you how to play," Qi Tianyu said with a sense of accomplishment, he turned the gears and proudly raised his head.

He is that good.

Qi Jiu was thoughtful, "What's the structure inside?"

Jiang Mengmeng also wanted to know, "I'll know if I take it apart."

The little fat man was eager to try, "I'll take it apart."

She likes to take things apart.

Qi Tianyu who hasn't played enough:  …

"Are you crazy? Such a good toy, why did you take it apart! Don't take it apart, can we take it apart after playing for a while?"

Jiang Mengmeng ignored him.

Qi Jiu and Tian Mi happily pushed him away, and then watched Jiang Mengmeng take a small tool and crack open the iron sheet.

Qi Tianyu curled his lips and squatted behind with a depressed face.

Jiang Mengmeng's memory of Tian Mi's painting skills is still fresh, so no matter how coquettish and cute Tian Mi wants to paint this time, Jiang Mengmeng justly refuses.

Just kidding, if Tian Mi is really asked to draw the parts, can the drawings still be read?

Holding the pen, Qi Jiu clearly wrote down the process of Jiang Mengmeng's disassembly and the parts.

Qi Jiu complained, "Slow down, I haven't watched it yet."

"Hurry up, I'll forget about it later when I take it apart." Jiang Mengmeng curled her lips.

Qi Jiu was unhappy, "You despise me for being slow, then you can draw it yourself."

Jiang Mengmeng was too lazy to draw it again. She just held the drawing and wrote out the function of each component according to her own ideas.

Jiang Mengmeng pretended to be deaf and dumb, Qi Jiu hummed.

Because of Qi Tianyu and Tian Mi's friends who are not very smart, Qi Jiu and Jiang Mengmeng will inevitably spend a little time thinking about it.

"So the hand turns the rotary rod to drive the clockwork, and the clockwork drives the gears to turn the crank rotation into reciprocating motion, thereby driving the frog's legs to move, and the spring stores energy to convert the continuous beating of the frog's legs into intermittent motion. What's the reason why we can't go back?" Qi Tianyu repeated it, and suddenly felt that he was very knowledgeable now.

Jiang Mengmeng nodded guiltily, she would not admit that it was the reason for her violent demolition.

The four of them stared wide-eyed.

Tian Mi asked, "So why do we need so many useless parts? It's better not to dismantle them."

"Yes, yes, it's all your fault. Why don't Mengmeng ask Grandpa Zheng to make one for you based on these parts?" Qi Tianyu encouraged, "Anyway, we are idle, we have time to wait."

Jiang Mengmeng thought for a while and shook her head resolutely, "Grandpa Zheng finally came home, we can't disturb him being alone with Grandma Yu."

Qi Jiu also felt that it would be very rude to come here now.

What a bad impression.

"Forget it, we should do our own research."

Both Jiang Mengmeng and Qi Jiu like to use their brains and hands. Even without the participation of Tian Mi and Qi Tianyu, they can still have fun,

Of course, with their participation, they will be even more busy and happy.

Qi Tianyu directly played with the small spring and the fixture in his hand.

As for Tian Mi, she simply didn't bother to play with them, holding the big one alone, brushing her hair and tying her pigtails.

Qi Jiu took the thin frog legs and studied carefully, "How can such a light material make the whole frog bounce?"

As he spoke, he handed the frog leg to Jiang Mengmeng.

Jiang Mengmeng blinked, "I don't know."

Qi Jiu pursed her lips, "I don't know either."

Dabao looked at the two worryingly, "The balance uses this principle, you can think about it in this way."

Jiang Mengmeng: .... I don't want to think about it here, what should I do?Why is a toy so complicated.

Dabao:.......Didn't you start it first?

Seeing Jiang Mengmeng biting the tip of her pen, Qi Jiu moved over curiously, "Do you know the principle?"

Jiang Mengmeng blinked, "Do I know?"

Qi Jiu pursed her lips, "Ask yourself if you know, I'm not a roundworm in your stomach, how would I know..."

Jiang Mengmeng curled her lips, "Then let me know."

Dabao said it was a balance, so it is right to think this way.

The little fat man scratched his head for a long time without coming up with a reason, so he handed the frog leg to Qi Jiu, "Please help me think about the structure of the scale that uses it."

Qi Jiu was dumbfounded, "Tianping has this."

Jiang Mengmeng never doubted Dabao's words, and nodded fiercely, "If you use it, just think about it, I don't have a balance at home."

"I have a balance at home, but I haven't dismantled it," Qi Jiu began to think a little worried.

Seeing the two being stupid, Tian Mi curled her lips in disgust, what's there to think about?If you want to know the principle, go directly to the balance.

Oh, there is no Mengmeng family.

It doesn't matter, she has it at home.

But she wasn't interested.

As soon as the old lady came out happily holding her little gown, she saw four silly children, and she suddenly felt a little happy.

Because Baimei knew Qi Jiu's size, she made his first.

The old lady pulled Qi Jiu into a coat, "Look, see if you are satisfied."

Satisfied, can you be dissatisfied?

This is his first Chinese tunic suit, and he used to wear small shirts.

It's rare that the current Qi Jiu is a little cute in this grade.

Qi Tianyu was envious, "Grandma, when will my clothes be ready?"

Xu Cuihua said cheerfully, "It's coming soon, it's coming soon, your aunt is doing it."

Qi Jiu cherished it very much, and followed Xu Cuihua into the house, "Grandma, do I need to change my pants?"

Xu Cuihua thought for a while and nodded, "Okay, let's go into the milk house."

Jiang Mengmeng and Tian Mi followed curiously, and Qi Jiu looked at them angrily, "Don't come in."

Tian Mi said confidently, "This is Mengmeng's house, not yours, so I'm going in."

Qi Jiu pouted, "I'm a boy, how can you girls watch me change clothes?"

Qi Tianyu jumped out, raised his paw, "I'm a boy, I want to go in and have a look."

Qi Jiu:......

Being stared at by Qi Jiu with a stern face, Qi Tianyu couldn't resist, "Okay, okay, I won't watch, I won't go into the house, okay? Hmph, who cares, anyway, I have clothes later. "

Qi Jiu didn't care about them.

Finally, looking at the old lady who came out, the three children were satisfied.

They just said, how could Qi Jiu, a cheapskate, just drive them away.

Qi Tianyu felt itchy in his heart and eagerly entered the room to wait for Bai Mei to turn on the machine, "Auntie, how long will it take for mine to be ready?"

Bai Mei smiled and said, "It will take two hours. You guys go play for a while first. Are you hungry?"