总统否决了议会的决议，行使了他的否决权。

The president ___overrides the parliament's decision using his veto power.

在紧急情况下，病人的生命权优先于所有其他考虑因素。

In emergencies, the patient's right to life ___overrides all other considerations.

当系统出现故障时，操作员必须手动覆盖自动设置。

The operator had to ___override the automatic settings when the system malfunctioned.