吃透英语课本，提升在校竞争力
v. 使变质；损害；使失效
现在分词：vitiating
第三人称单数：vitiates
过去式：vitiated
过去分词：vitiated
Strategic policy during the War was vitiated because of a sharp division between easterners and westerners.
由于“东方人”和“西方人”间的巨大分歧，战争期间的战略方针没有得到切实的执行。
His dishonesty will vitiate the contract.
他的不诚实会使合同无效。
His actions vitiate the agreement.
他的行为使协议失效。
vt.损害，弄坏；使无效；污染
hurt
break
blast
