vitiates
v. (使)削弱( vitiate的第三人稱單數 ); (使)破壞; (使)損害; (使)無效
If something is vitiated, its effectiveness is spoiled or weakened.
Strategic policy during the War was vitiated because of a sharp division between 'easterners' and 'westerners'...
由於“東方人”和“西方人”之間存在巨大的分歧,戰爭期間的戰略方針沒有得到切實的執行。
But this does not vitiate his scholarship.
但這不會威脅到他的獎學金。
Yet prohibition itself vitiates the efforts of the drug warriors.
然而,正是禁令本身使販毒戰士的努力歸於實效.