About the difference between junior high school and primary school, the content is probably: primary school teaches you to make cakes, the exam is to make cakes, and junior high school is?

But this metaphor is very interesting. It is said that primary school teaches making cakes, and exams are making cakes. It means that if you study in class, you will not worry about the exam.

That junior high school must be different.

Class in junior high school is to make cakes. Wait until the exam, let you finish the cakes you made before, and see who eats more and digests well.

It means that although I taught you the knowledge of studying and attending classes in junior high school, whether you can eat well and digest well during the exam is another matter.