If you know ahead of time which meals should be vegan that will make things a lot easier on you.

如果你提前就知道哪些膳食是素的一切就会容易很多了。

youdao

If you know ahead of time that you are going to run into obstacles, you can be better prepared to deal with them.

如果你可以预测到你将要遇到障碍的时间，你就可以更好的应对它们。

youdao

He knows his direction even if he did not know ahead of time that he would have to answer the specific question posed.

他虽然事先并不知道，但他知道他的方向，他当然会回答提出来的这个具体问题。

youdao

when I've been surprised. When we had like a surprise we got to go out to someplace very fancy, didn't really know what was going to happen ahead of time.

VOA: special.2010.02.08

To help you know sort of ahead of time quickly what those views are, I want to start by describing a set of views that many of you probably believe.

让你们稍微提早点儿知道,那些观点是什么，我想要从描述它开始,可能你们有些人会相信。

耶鲁公开课 - 死亡课程节选

So nevertheless, even having given you that historical example, we're going to come back and we'll look later on in the class at a model in which politicians cannot choose their positions, but, rather, you know their positions ahead of time.

尽管如此,尽管我列举了一个历史上的例子,我们还是要回到课堂上来,我们接下来要来探讨一个,政客不能自己选立场的模型,但是当然你们可以提前获知他们的立场

耶鲁公开课 - 博弈论课程节选

So long as you attempt an email or phone call to let me know ahead of time.

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"You never know ahead of time what's going to set the commissioners off, " says Fox attorney Carter Phillips.

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"If you know ahead of time what you're going to be facing, you either plan to beat it, or you go somewhere else, " Bloom said.

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