You need to sharpen your pencils before the test.

考试前你需要把你的铅笔都削尖。

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It was Monday afternoon and we had two nights to study before the test on Wednesday.

那是星期一下午，在星期三的考试前我们有两个晚上学习。

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Just before an exam, highly anxious test-takers spend ten minutes writing about their worries about the test.

VOA: special.2011.01.20

So a bit of uninteresting math, a bit of focus on sizes of types, but any questions on syntax or concepts thus far before we now put this to the test?

一些比较无趣的数字，一些关于类型的大小,在我们现在进行试验之前,你们对这其中的语法或概念有什么问题吗？

哈佛公开课 - 计算机科学课程节选

All right. So let's test what we, in fact, know about the photoelectric effect, and before we do that actually, we're going to calculate what we would predict, so when we do the demo it will be meaningful and we can tell whether we're successful or not.

好的，我们来测试一些，我们实际上懂了,多少光电效应的东西，在我们做测试之前，我们先算一下我们能预知什么，这样我们做的测试会很有意义,并且也知道我们是否成功了。

麻省理工公开课 - 化学原理课程节选

Days before the test event, seats were still being installed and pavements laid near the venue.

BBC: 'Problems' as Maracana stadium reopens in Rio

The teenager signs the waiver before the test is taken and without knowing various other circumstances.

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However, he said much more work was needed before the test could be made widely available.

BBC: Test for tick disease