nullifying的中文翻译是什么意思

He used his broad executive powers to nullify decisions by local governments...

他利用自己适用范围广泛的行政权力废止当地政府所作的决定。

It is worth remembering that previous wills are nullified automatically upon marriage.

要记住的是，一旦结婚，原遗嘱自动失效。

He may be able to nullify that disadvantage by offering a wider variety of produce...

他也许能通过供应更为多样化的农产品来抵消那一劣势。

This, of course, would nullify the effect of the move and merely accelerate inflation.

这毫无疑问会使该举措完全失效，而仅仅只是加速通货膨胀。