nullify
['nʌlifai]
vt. 使无效，作废；取消
同义词
反义词
参考例子
1.The most important of these endowed the courts with sweeping authority to review and nullify the ICC's rate decisions.
其中最重要的是：赋予法院复审和否决州际商业委员会所作运价裁决的决定性权力。
2.But Ferreira, to his credit, sprung consistently and quickly off the cover to confront the winger and nullify his impact.
不过值得赞扬的是，费雷拉可靠地出现并迅速地填补空位，以反抗这位边锋和抵消他的冲击。
3.Destruction: The Annulus must be used to nullify a demigod or more powerful being, or another major artifact, as described above.
摧毁：如前所述，必须将“灭灵之环”用于轰杀半神或更强存在，或是另一件高等神器。
英文解释
v.
1.declare invalid
2.show to be invalid
3.make ineffective by counterbalancing the effect of
网络释义
nullify
无效; 使无效; 取消 取消; 取消;
Nullify Magic
解除魔法; 魔法尽失;
nullify registration
注销登记;
nullify the election
使选举无效;
nullify the registration
注销登记;