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vitiates的音標(biāo)：...

Yet prohibition itself vitiates the efforts of the drug warriors.然而,正是禁令本身使販毒戰(zhàn)士的努力歸于實(shí)效....

v.（使）削弱( vitiate的第三人稱(chēng)單數(shù) )，（使）破壞，（使）損害，（使）無(wú)效...