v declare invalid
v show to be invalid
v make ineffective by counterbalancing the effect of
vt. 使无效, 废弃, 取消
[化] 使等于零; 作废
1. The court decided to nullify the contract due to fraud.
法院决定因欺诈而使合同无效。
2. His actions were meant to nullify the impact of the negative feedback.
他的行为旨在消除负面反馈的影响。
3. The new law will nullify the previous regulations on pollution.
新法律将废止先前关于污染的法规。