Meng Jia used a candy wrapper as a base, pinched the peeled milk candy, and handed it to Xu Keke.

Qi Chang overheard Meng Jia asking Xu Keke from inside the house, "Sister, is it sweet?"

He listened carefully for a long time but didn't hear a reply from Xu Keke. Qi Chang wished he could leave immediately. But Wei Jie, whom he disliked, was sitting right in front of him.

Qi Chang looked at Wei Jie again, and the more he looked, the more annoyed he became.

Wei Jie had no idea what he was thinking. He was still thinking, no wonder his uncle said that everyone in this courtyard really got along like family. Qi Gong was the same; he looked cold on the outside, but he was warm-hearted.

Wei Jie felt he had gained a new understanding of Qi Chang, so he became bolder and started to speak his mind. He didn't hold back in raising any questions he had about the machines in the workshop.

Qi Chang was in no mood to talk to him about these things. "You've graduated from high school, right?"

Wei Jie nodded, "I finished high school, but I didn't get into university."

Qi Chang got up, picked up a book from the table, and tossed it to him. "The questions you asked aren't that big, but they're not small either. Some of them are just basic questions. Here's a book; take a look at it first."

Wei Jie picked up the book and flipped through it, then looked at Qi Chang with difficulty, "Engineer Qi, I don't understand this."

"Didn't you graduate from high school?"

Qi Chang spoke very bluntly, and Wei Jie's face flushed red. "Yes, I haven't learned it well enough."

“Since you’re interested in mechanics, you can’t just have a superficial understanding. Here, wait here for a while. Take a look, no matter how much you can read, you have to keep reading. Make sure you remember anything you don’t understand. I’ll go find you a book now.”

Before leaving, Qi Chang tossed him a pen and a piece of paper, telling him to write down anything he didn't understand.

Wei Jie was thrilled, thinking Qi Chang wanted to take him as a disciple. He held a pen and diligently flipped through the pages. However, this theoretical knowledge was simply beyond his comprehension; it couldn't be understood by memorizing. After a long time, Wei Jie still didn't know what to memorize. He recognized the individual characters, but when combined, he couldn't understand a thing. Memorizing it would be like copying a book.

Wei Jie sat at Qi Chang's desk, and as he looked at the books, he felt an urge to cry.