| 释义 | 
		beforehand美 [bɪ'fɔr.hænd]  英 [bɪ'fɔː(r)hænd]  adv. earlier,in advance,before,early,ahead of time 1.  | 预先;事先earlier; before sth else happens or is done  |  
  | two weeks/three days/a few hours beforehand 提前两星期╱三天╱几小时  |   | I wish we'd known about it beforehand. 要是我们预先知道这事就好了。  |  
 adv.  | 1. used to indicate that a situation, action, or event happens ahead of time or in advance of something 2. before a particular eventused especially for talking about something done in preparation for the event  |  
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