You must learn to read closely.

你们必需要学着仔细地阅读。

耶鲁公开课 - 政治哲学导论课程节选

This "you have to" pattern is something that you really must learn,

you have to”句型是英语学习中必不可少的句型，

have to 课堂 - SpeakingMax英语口语达人

The new prince, as we've seen, must know how to use religion but needs to learn how not to be used by religion, must not become a dupe of the religious.

正如我们所看到的，这种新型君主必须知道,如何去利用宗教而不是被宗教所利用,必须避免成为受宗教愚弄摆布的对象。

耶鲁公开课 - 政治哲学导论课程节选