make up one's mind 决心，决定

　　这是个比较眼熟的句式。make up one's mind 用在好坏立场分明的情况，表示“决心做某事”。用一个单词概括就是 decide,还可以表示为 make a decision。

　　例句：

　　I haven't made up my mind yet.

　　我还没做出决定呢。

　　Hurry up and make up your mind.

　　抓紧时间做决定。

　　Make up your mind. What time is okay for you?

　　快点决定，你几点可以？

　　Did you make up your mind about what you're going to do?

　　你决定要做什么了吗？

　　对话：

　　A: Are you going to join our team?

　　你要加入我们队？

　　B: I haven't made up my mind yet.

　　我还没决定呢。