玛丽是怎么到学校的？她乘地铁。

How does Mary get to school? She takes the subway.

youdao

她乘地铁上班。

She goes to work by tube.

youdao

她乘地铁。

She the subway.

youdao

Her goal was so simple, get on the train.

她的目的很简单，乘上地铁。

哈佛公开课 - 计算机科学课程节选

I just wanted to get her on the subway and she, too, she did mention I want a round trip, she wants to be able to come back from Park Street Station so where is the option that just says one way or round trip?

我只想让她乘上地铁，她也是，她提到她想要一个环形旅行，她想,从Park，Street地铁站返回，但是哪里有一个选项,来说明是一个单线的还是环线的？

哈佛公开课 - 计算机科学课程节选