Students need to ask for a leave ahead of time if they can't go to school for several days.

如果学生几天不能来上课，他们需要提前请假。

youdao

If you are worried about the interview, you can go to the company ahead of time so that you can collect your thoughts before the interview begins.

如果你担心面试，你可以提早去公司，这样你就可以在面试开始前镇定下来。

youdao

In other words you can feel rushed inside but still take the time to smile and let someone go ahead of you in line or on the road.

换言之，也许你的内心正火急火燎，但是你仍然可以面带微笑，让别人排在或走在你前面。

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

You are about to go off on Friday night to see these movies and let's allow some communication ahead of time.

现在你们约好了周五晚上一起看电影,你们可以先沟通一下

耶鲁公开课 - 博弈论课程节选

In Singapore and Hong Kong, I go to the airport ahead of time just to eat.

WSJ: Chef Eric Ripert's Airport Dining Picks | Traveler's Tale

Having run out of time to correct the errors in the Draft EIS, I guess they just had to go ahead make an announcement of a hypothetical preferred alternative just to gain time to come to real, meaningful grips with the situation.

FORBES: Obama Administration to Ban Uranium Mining at the Grand Canyon

The National Farmers' Union is leading the preparations for the scheme, but Mr Paterson said it had written to him asking for a delay, as this was not the best time of year to go ahead.

BBC: Badger cull: Government to delay scheme until next year