nullify
/ˈnʌlɪfaɪ/verb
1- (-ies, -ied)with obj. make legally null and void; invalidate使无法律效力; 使无效; 否定：
judges were unwilling to nullify government decisions.
法官们不愿意否定政府决策的合法性。
1.1
- make of no use or value; cancel out使无用, 使无价值; 抵消：
insulin can block the release of the hormone and thereby nullify the effects of training.
胰岛素能阻碍激素的释放, 从而抵消训练的效果。
派生词