prep. 介词在…之前； 在…前面；比…重要
conj. 连词在…之前；到…为止；以免
adv. 副词以前
She always stretches before her morning run.
她总是在晨跑之前做伸展运动。
Finish your homework before you watch TV.
在看电视之前先完成你的作业。
We should leave before the traffic gets bad.
我们应该在交通变糟之前离开。
He had never traveled before he met her.
在遇见她之前，他从未旅行过。
Make sure to lock the door before you go out.
在外出之前确保锁好门。
She reviewed her notes before the exam.
她在考试之前复习了笔记。
We will eat dinner before the movie starts.
我们会在电影开始之前吃晚饭。
He always meditates before going to bed.
他总是在睡觉之前冥想。
She had never seen snow before moving here.
在搬到这里之前，她从未见过雪。
Call me before you make a decision.
在做决定之前给我打电话。
before dawn 黎明前
before sunset 日落前
before noon 中午前
before breakfast 早餐前
before bedtime 睡觉前
before the meeting 会议前
