| 释义 | 
		unprecedented美 [ʌn'presɪdentəd]  英 [ʌn'presɪ.dentɪd]  - adj.前所未有的;空前的;没有先例的
 - 网络史无前例的;前所未见
 
 adj.+n. unprecedented scale,unprecedented demand,unprecedented move,unprecedented number,unprecedented opportunity adj. unparalleled,extraordinary,record,first-time,unique 1.  | 前所未有的;空前的;没有先例的that has never happened, been done or been known before  |  
  | The situation is unprecedented in modern times. 这种情况在现代还没有出现过。  |  
 adj.  | 1. 空前,空前绝后的,前所未有的,史无前例的,前所未闻的 1. 空前,空前绝后的,前所未有的,史无前例的,前所未闻的  |  
 adj.  | 1. having no earlier parallel or equivalent 2. never having happened or existed before  |  
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