He ate some tart in the morning before going out.

早上离开前，他吃了一些馅饼。

youdao

I washed and changed before going out.

我洗了个澡，换好衣服，然后才出去。

《牛津词典》

He surveyed himself in the mirror before going out.

出门前他对着镜子把自己审视了一番。

《牛津词典》

The reality is all the stadiums are done." "Then you said,no, they are going to run out of money before everything is in place.

VOA: standard.2010.02.10

solve1 I'm going to use solve 1 as before, but now I'm going to bind out three variables.

我还是用以前的，但是现在我要绑定三个变量。

麻省理工公开课 - 计算机科学及编程导论课程节选

So let's fill it out in this way, 2p keeping in mind that we're going to fill sigma out the pi 2 p's before the sigma.

让我们这样填上去，记住我们先填π,轨道再填。

麻省理工公开课 - 化学原理课程节选

Winnipeg will play its next two games at home before going out on another four-game trip.

WSJ: Kane, Jokinen score 2 each in Jets win over NYR

Macaulay worked several jobs--among others, as energy analyst for Oppenheimer's mutual funds--before going out on his own.

FORBES: Magazine Article

An eight requires one or two corrections before going out to a guest.

NEWYORKER: Big Med