black-out

n 1 (a) period when all lights must be put out or covered, esp as a precaution during an air attack 灯火管制期（尤指为防空袭的）: Curtains must be drawn during the black-out. 在灯火管制期间必须拉上窗帘. (b) period of darkness caused by an electrical power failure 停电. (c) (theatre 戏) extinguishing of stage lights, eg at the end of a scene 舞台熄灯（如在戏剧中一幕结束时的）. 2 temporary loss of consciousness or sight or memory 暂时失去知觉、视力或记忆. 3 prevention of the release of information 封锁消息: The government imposed a news black-out (ie stopped the broadcasting and printing of news) during the crisis. 政府在那次危机期间实施新闻封锁.

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