counterbalance

n. 平衡,平衡力
v. 抵销
vt. 使平衡,抵销

His wife's calm nature act as a counterbalance to his excitability.

他妻子生性从容不迫，这对他的易冲动的个性起著平衡作用。

His wife's calm nature acts as a counterbalance to his excitability.

他妻子的沉着冷静抵销了他的急性子脾气。