v.使無效;廢除;取消
The election results were nullified because of voter fraud. 因為選民舞弊,選舉結(jié)果無效。
Counterintelligence seeks to nullify the enemy's espionage efforts. 反間諜情報之目的是挫敗敵人的間諜活動。
He has no right to nullify laws. 他無權(quán)廢除法律。