Sure, she goes away--we have to understand this: we know our mother goes away, but guess what?

当然，她有时必须离开--我们必须理解这一点：,我们知道妈妈走了，但是你猜怎么着？

耶鲁公开课 - 文学理论导论课程节选

You have to leave in twenty minutes.

0分钟后你必须离开。

have to 实战 - SpeakingMax英语口语达人

And, at the very end, when Sal has to leave Dean on the street, I actually love how this works. He's in the back of a Cadillac.

在最后的部分，当萨尔在街上必须离开迪安时，我实际上很喜欢这个安排，他坐进凯迪拉克里。

耶鲁公开课 - 1945年后的美国小说课程节选

You might think, given all this, and given the ultimate plot of On the Road, that being on the road is about pursuing that kind of desire, and that it is necessitated by leaving home: you have to leave home in order to pursue that desire.

你们可能觉得，所有这些，以及《在路上》的最终情节，关于在路上就是追寻这种渴望，这就使离家成为必需：,你必须得离开家才能追求那渴望。

耶鲁公开课 - 1945年后的美国小说课程节选