We had prepared the Polyjuice Potion beforehand.

我们事先配好复方汤剂。

Let me buy the tickets beforehand.

我来票。

Most snakes, however, will use one of two strategies to kill their prey beforehand.

然而，大部分的蛇杀死猎物的方法有以下两种。

She is a little bit insane, yeah. She had a very sad love story beforehand.

她是有些疯狂。她之经历过一段非常悲伤的爱情。

Because I want to travel the world and go to university and see other cultures beforehand.

因为在这之我还想环游世界，上大学，体验其他的文化。

Do we need an appointment beforehand?

那我们要预约吗？

Many owners argued they would have chosen to replace batteries if they had known the issues beforehand.

很多用户认为，如果事先知这一问题，他们可能会选择更换电池。

Leaders of the Intelligence Committee complained that Cohen violated an agreement by releasing a public statement beforehand.

情报委员会领导人称科恩违法协议规定，向公众发表声明。

In addition, your essay will be more cohesive compared to someone who didn't organize their thoughts beforehand.

除此之外，你的文章会比那些没有事先整理好想法的人的文章更具有整体性。

If we haven't done the work beforehand, you can't wait until those two seconds to do it.

如果我们没有做好工作，就不能等到那两秒后再去做。

But she did give the statement beforehand that she would not accept being buzzed in the presidency.

昂山素季之曾发表声明，称不会对总统职位作出让步。

She ought to have reported it to the boss beforehand.

她本应该事先向老板报告的。

I hope that he hadn't his medal rely beforehand?

他事先并没有给自己铸造勋章吧？

In the hours beforehand, the mood was fractious and occasionally heated.

在之的数小时，现场充满了争执，有时还很激烈。

Well, you know, we didn't think they could beforehand.

你知，以我们也没有想到他们能做到。

As you know, the hunter-gatherer economy which existed beforehand was based on small scattered groups.

如你所知，之狩猎经济的存在是以小型分散族群为基础。

The international community should make standards and rules with a foresight and study new problems of global governance beforehand.

国际社会应该以瞻性的眼光制定有关标准和规范，研究全球治理中新的问题。”

Pleasure not known beforehand is half wasted; to anticipate it is to double it.

快乐如果没能预先知，那就浪费了一半；如果有所企盼，那就等于获得了加倍的快乐。

If they could've known that beforehand, maybe it all would've been okay.

如果他们不能预知这一切，可能一切也是会照常运转下去。

I think it grew now much further from the elections than that, there were beforehand.

我想自从选举后政府就越发壮大，这都是预先准备好的。