| 单词 | preemptive | 
| 释义 | preemptive  (priɛmptɪv  ) also pre-emptive adjective  A preemptive attack or strike is intended to weaken or damage an enemy or opponent, for example, by destroying their weapons before they can do any harm.   A preemptive strike against a sovereign nation raises moral and legal issues.    | 
	
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