Honor**********

The content in the book is very in-depth, and I benefited a lot from the expansion and deepening of the mechanics part. I especially like a sentence in the book: "Force is what changes the state of motion of an object." This sentence explains the core concept of mechanics concisely and clearly. Moreover, this book has been adjusted according to the latest exam syllabus, adding video explanations and online answer functions, which is very practical. Recommended to all friends who are interested in physics!