yicong, There are several valid reasons I can think of that Goldstein might not be the best mechanics book for you, but "don't have time to read it" is not one of them. You don't say what your purpose is, whether you're taking a mechanics course, preparing for an exam, or something else. There are many good books out there. Despite any recommendations, you should stop at the library and glance through a few of them yourself. Bearing in mind that you don't have to completely digest every chapter. Classical mechanics is a large subject, and your choice should partly depend on what you want to emphasize.
The shortest treatment is rarely the clearest. Most complaints I've heard go the other way, that things were glossed over, not explained, not enough detail provided. Take a look at the book by John Taylor. It's large, larger than Goldstein, but has received favorable comments.