(1)'d better 最好是

I'd better read one of the articles for the class.

我最好还是为上课读篇文章准备一下。

I think you'd better find another partner.

我想你最好还是另找一个搭档吧。

(2)make it better 让……更好

I'd rewrite the last two paragraphs to make it better.

我已经重写了最后两段以使它更好。

(3)be better 更好些

I told you it would be better for you if you took fewer courses during the first semester.

我告诉过你如果你在第一个学期少选一些课程会比较好一些。

book

(1)书。本意，简单名词。

(2)预定，订购。 be booked up 被预定空了;booking office 售票处