prevent
构词:pre (提前)+vent(= went 到来)
事情到来前 v. 预防,防止
相关:venture,advent,convention,event,invent,intervention
搭配:prevent an accident / pregnancy / pollution / cancer ;
prevent someone from doing
近义:preclude,stop,avoid,avert,hamper,hinder,block,frustrate,obstruct,inhibit,impede,restrain
考点:否定关系
previous
构词:pre (在前面)+vi(=way,走)+ous(adj.)
走在前面的 adj. 先前的
相关:away,via,voyage,convey,deviate,trivial,obvious
搭配:previous day / work / boss / owner/ chapter / marriage / experience / engagement / conviction
近义:once,before,earlier,past,former,prior,preceding
考点:时态问题
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