prep.
1.在...以前
Only two days remained before the examination.
考前只剩下兩天了.
2.(指順序、重要性等)在...之前,先于
Your name comes before mine.
你的名字在我之前.
Pride comes before a fall.
驕必敗.
3.由...考慮中
We will put the matter before the committee.
我將把此事提交委員會考慮.
4.在...前面;在...面前
She said she had never spoken before an audience.
她說她從未在大庭廣眾講演過.
ad.
1.較早
Come at two o'clock,not before.
兩點鐘來,不必再早了.
2.以前;曾經
He was never late before.
過去他從不遲到.
Have you two met before?
你們兩人以前見過面嗎?
3.在前;向前
Several soldiers went before to scout.
數名士兵在前面探路.
conj.
1.在...以前
Check it carefully before you hand it in.
交來之前仔細核對一下.
2.與其...寧可
I'd die before I'd tell.
我寧死也決不會說出來.
3.否則,要不然
Get out before I call the police.
滾開,否則我叫警察.