before

We should arrive before dark.

我们天黑以前应该能赶到。

All customers travelling on TransLink services must be in possession of a valid ticket before boarding.

所有使用联运服务的乘客在登机前必须持有有效机票。

They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.

他们发现，20世纪80年代之前的产量增长速度在20世纪90年代和21世纪有所放缓，这占据了作物收割面积的24%至39%。

I won't be able to get away from the office before 7.

我7点钟之前无法离开办公室。

I'm afraid I can't make it before seven o'clock.

恐怕我不能在七点前赶到。

Where should you try to make all your appointments either before 2:00 or after 5:00 pm?

你应该把所有下午2点前或者5点后的约会安排在哪里？

Your name is before mine on the list.

名单上你的名字在我之前。

Begin to train your brain to look at strength before weakness.

开始训练你的大脑，让它先看到优点，再看到缺点。

The object, of course, is to get the bottom of the pie plate before the other people.

当然，这样做的目的是比别人先吃到馅饼底。

They had the advantage of playing before their home crowd.

他们有在主场观众面前比赛的优势。

I think he's glad to come, but what's difficult is getting the guy to speak before a large crowd.

我想他很乐意来，但困难的是让他在一大群人面前讲话。

"She shouldn't be harassed in this way," says Ann Clarke, a plant biologist at the Univeristy of Guelph in Canada who also testified before the commission.

“她不应该受到这样的骚扰。”加拿大圭尔夫大学的植物生物学家安·克拉克说，她也在委员会面前作证。