before
英 [bɪ'fɔː]美[bɪ'fɔr]
	    - prep. 在…之前,先于
 - adv. 以前;在前
 - conj. 在…以前;在…之前
 
英英释意
- 1. earlier in time; previously;
 - "I had known her before"
 - "as I said before"
 - "he called me the day before but your call had come even earlier"
 - "her parents had died four years earlier"
 - "I mentioned that problem earlier"
 
- 2. at or in the front;
 - "I see the lights of a town ahead"
 - "the road ahead is foggy"
 - "staring straight ahead"
 - "we couldn't see over the heads of the people in front"
 - "with the cross of Jesus marching on before"