After traveling through time, I, as a mechanical genius, am dedicated to improving myself.

It's good that it's not my class, I can still go and take a look. The principal is so excited, what new thing must it be!!!

The head teacher took a break and continued teaching.

The principal, holding Zeng Li's hand, suddenly slowed down his pace.

"Zeng Li, when you're done, could you fix my radio?"

Zeng Li glanced at the principal and asked, "Will you give me money?"

The principal rubbed his nose and glanced at Zeng Li out of the corner of his eye: "How much is appropriate?"

Zeng Li counted on her fingers: "Replacing the parts inside will take time, and it will cost at least five dollars."

When he heard the price of five dollars, the principal hesitated.

Zeng Li said, "If you ask me to change it now, it's five yuan. But when I get into the National University of Defense Technology, five yuan won't be enough to make me change."

As soon as these words came out, the principal gritted his teeth and said, "Change it. Five dollars is five dollars."

After finishing his own business, he quickened his pace back to the principal's office with Zeng Li.

When Jiang Cai saw Zeng Li coming over, he gave up his seat and let her operate the radio.

"I can hear foreign languages, but they are intermittent and not very stable."

"That's normal. There are many obstacles, such as buildings and mountains. These will produce reflection, refraction, and scattering effects, which will cause the energy distribution of radio waves to become uneven."

Zeng Li explained the principle to them in a good mood, because tomorrow was the weekend and she also earned two dollars from the principal.

"No one taught you these?"

Jiang Cai asked the question that concerned him most.

"No, I figured it out on my own. If you don't understand, read a book."

In the first two months after I came to this era, I was really reading books like crazy, reading books on all kinds of things, trying to understand all kinds of information about this era.

It also allows me to adapt to the original owner's family's lifestyle, everyone's personality, and how to get along with each other without being exposed.

These are the most tiring two months.

Jiang Cai looked at Zeng Li with complicated eyes.

Logically, a person's talent is relatively single and needs to be constantly polished to maintain it.

Generally speaking, if the signs of talent are not cultivated, this talent will gradually disappear.

Zeng Li is like a treasure.

When she was young, she was very sensitive to numbers and was good at math. Her family didn't know how good she was. They just knew that she basically didn't listen in math classes and read other books, but she always got full marks in math.

When you get older, you start working on more difficult math problems.

Then he suddenly said that he had a photographic memory.

Now there is a mechanical talent.

There are too many talent points and it is too difficult to cultivate them.

"Zeng Li, what else can you repair?"

Zeng Li wanted him to see it firsthand.

"Are you free tomorrow? I'll take you to my secret base."

Jiang Cai was overjoyed and nodded: "When I'm free."

The principal interrupted, "I'm free too."

Zeng Li doesn’t care. It doesn’t matter whether she brings one person or two people.

the next day.

Jiang Cai, the principal, and Zeng Li were not surprised to see him at the doorstep, so why was the head teacher there too?

Zeng Li only had eyes for her homeroom teacher and greeted her, "Hello, Teacher Xu."

The other two were subconsciously ignored.

Zeng Li took her bag and led the three of them on a long, winding journey.

"Zeng Li, the secret base you mentioned is a garbage recycling station?"

"Yes."

The old man was very friendly when he saw Zeng Li: "Li Li, why did you bring so many people to Taobao today?"

"Uncle, don't worry about me. As usual, we'll shop by ourselves and pay you when we're done."

"Go ahead, everything you want is left for you."

Jiang Cai discovered that this garbage station had set up a small corner for Zeng Li, which was full of electronic waste with parts, and there was a toolbox next to it.

Zeng Li took a look at the new toy, squatted down and started to take it apart.

The three of them didn't disturb her and just watched quietly.

Zeng Li deftly removed the necessary parts and kept the unnecessary ones to sell as scrap to the old man.

Today there's a small broken black and white TV and a smashed color TV.

"It's only because you're here that I'm going to show you. Otherwise, I'd definitely dismantle this TV and take away all the parts. There's a lot of stuff inside that I want."