blackout

1. N-COUNT A blackout is a period of time during a war in which towns and buildings are made dark so that they cannot be seen by enemy planes. (战时为防止空袭而实施的) 灯火管制期

...blackout curtains. …灯火管制时用的窗帘。

2. N-COUNT If a blackout is imposed on a particular piece of news, journalists are prevented from broadcasting or publishing it. (新闻等的) 封锁

...a media blackout imposed by the Imperial Palace. …皇宫强制实行的新闻封锁。

3. N-COUNT If there is a power blackout, the electricity supply to a place is temporarily cut off. 停电

There was an electricity black-out in a large area in the north of the country. 该国北方有一大片地区都停电了。

4. N-COUNT If you have a blackout, you temporarily lose consciousness. 暂时失去知觉

I suffered a black-out which lasted for several minutes. 我昏过去好几分钟。