There was nothing I could do. When you have this kind of a problem, you can only take care of your body.

VOA: special.2010.08.09

It was only when we started to study those that we actually understood how we can best help that population.

只有当我们开始研究这些,才能了解如何帮助到整体。

哈佛公开课 - 幸福课课程节选

But now, when you need more, you can't just say I only want the best bottom land there is.

然而当你需要更多土地时,你不能张口就要这片地区最富饶的土地

耶鲁公开课 - 古希腊历史简介课程节选

Only the deaf can understand how I felt when my dog obeyed my spoken command."

VOA: special.2009.11.08

Because it can't be right to kill five people when you can only kill one person instead.

我认为当可以只牺牲一个人时,牺牲五人不是正确之举。

耶鲁公开课 - 公正课程节选

When you only have one classroom, but you have four different classes, you can only separate them by benches.

VOA: standard.2010.02.25

So if we go to the ground state, what you see is we're at that lowest energy level, and we only have one possibility for an orbital, because when n equals 1, that's all we can do.

如果我们在基态上，你可以看到，我们在能量最低的态上，只有一种，可能的轨道，因为n等于1，只有这种可能。

麻省理工公开课 - 化学原理课程节选

"We can't only listen once. We've got to listen twice because sometimes when the stories are told, you hear something and you learn something.

VOA: standard.2010.02.19

We can't stand against them anymore and when you start running, the only thing the guys who are left up front can do is run.

我们打不过他们了,而你开始逃跑,留在前面的人唯一能做的也是逃跑

耶鲁公开课 - 古希腊历史简介课程节选

In the public health care system, for example, only two hospitals are equipped with dialysis machines, which remove impurities from the blood when the kidneys can not do it.

VOA: standard.2010.05.30