I must keep my nerve. I must keep my nerve, he said through tight teeth.

“我保持镇静，保持镇静，”他咬紧牙关说道。

And that means that the nucleus must be intact.

这就意味着细胞保持完整。

We have to stay engaged in the process.

我们保持参与。

Vigilance is necessary if you want to beat the odds.

如果你想打破常规，保持警惕。

It had to be exactly as it was.

保持原声风。

So we have to stay vigilant.

所以我们保持警惕。

So that balance has to be maintained.

因此，保持这种平衡。

You gotta stay on top of it.

你保持领。

Do you have to be skinny to be a model?

为了当模特保持骨感吗？

That room had to stay perfect.

那个房间保持完美。

Do they have to be quiet in class?

他们在课堂上保持安静吗？

You must be sure not to lose your cool.

你保持镇定，不能失了风度。

To qualify for the bonus, they must maintain a healthy weight.

要获得奖金，他们保持健康的体重。

Students are required to maintain silence in the library.

学生在图书馆里保持安静。

Thankfully, there is a way out of this trap, but it involves striking a subtle balance.

谢天谢地，还有办法摆脱困境，但是保持微妙的平衡。

These seats must even remain empty until women are elected.

这些席位保持空缺，直到女性当选。

The universities are a last line of defense, and must remain that way.

大学是最后一道防线，保持下去。

You must keep your head clear.

你保持头脑清醒。

It has to stay frozen but other than that the taste is very comfortable.

它保持冷冻，但味道还是不错的。

If you want my help, you have to remain calm.

如果你要我帮忙，就保持冷静。