before
1、prep.在…之前; 先于,优于; 当着…的面; 与其…;
Annie was born a few weeks before Christmas...
安妮出生在圣诞节前几周.
2、conj.在…之前; 在…以前; 比…早些; 与其…;
He spent his early life in Sri Lanka before moving to England...
在移居英格兰之前,他早年是在斯里兰卡度过的
3、adv.先前,从前; 在前,在前方;
The war had ended only a month or so before.
战争大约一个月前才刚刚结束
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