印度火车票通常提前几周就发售一空了，所以如果你时间有限或者你喜欢搭乘特定列车的话最好在到印度前就提前购票。

Indian trains often get fully-booked weeks in advance, so it's worth booking before you get to India if you have limited time or need to be on a particular train soon after your arrival.

youdao

这是我们所有人都面临的一个问题：你与你想谈的人的时间有限，但你想让这次谈话令人难忘。

It's a problem all of us face: you have limited time with the person that you want to talk and you want to make this talk memorable.

youdao

一般情况下，在你使用手持设备时，你的时间很有限。

Generally, when you are using a mobile device, your time is limited.

youdao

Of course, you have allowed it to move a finite distance in a finite time.

你是让它在有限的时间内移动有限的距离

耶鲁公开课 - 基础物理课程节选