That's what many people do. They don't want to study and always want to take advantage.

There are so many cheap things in the world. The cheaper they are, the higher the price will be.

Hundreds of thousands of learned knowledge and hundreds of thousands of summarized technologies want to teach others, but many people are unwilling to invest thousands of dollars. What a poor man.

Why should others give you fruit for free? At the very least, it takes time and experience to guide you, not to mention that other people's expenses and previous investments are costs.