blackout基本解释

n,灯火管制；灯火熄灭；暂时的意识丧失,同近

...blackout curtains..…灯火管制时用的窗帘。

灯火管制；灯火熄灭；暂时的意识丧失英释中释na period during a war when all the lights in a town or city must be turned off