1 N-COUNT [usually singular] (战时)灯火管制期 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)灯火管制期
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...blackout curtains.
遮光幕帘
2 N-COUNT [usually singular, usually n NOUN] (新闻等的)禁播,封锁,禁止出版 If a blackout is imposed on a particular piece of news, journalists are prevented from broadcasting or publishing it. (新闻等的)禁播,封锁,禁止出版
3 N-COUNT [usually singular, usually n NOUN] 停电;断电 If there is a power blackout, the electricity supply to a place is temporarily cut off. 停电;断电
4 N-COUNT 晕厥;暂时昏迷 If you have a blackout, you temporarily lose consciousness. 晕厥;暂时昏迷
SYN unconsciousness, collapse, faint, oblivion
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