提示：点击例句中的单词，就可以看到词义解释

An emergency " brownout " was already in effect .

一次紧急的“灯光暗淡”已经生效了。

The most dangerous thing in the world is to make an irreversible negative decision during a brownout time .

世上最危险的事莫过於在疲累时作出无法挽回的负面决定。

The utilities attempt to meet the demand and succeed or fail to varying degrees ( brownout , rolling blackout , uncontrolled blackout ) .

公用事业机构为应付需求，是成功还是失败在不同程度上（掉电，滚动停电，停电失控）。