black out v.暂时失去知觉，昏厥。
blackout n.灯火管制时期；断电时期；断电，停电；消息封锁。例如a news blackout。

【例句】
I tried not to think about it. I blacked it out.
我尽量不去想它，竭力要将它忘掉。

Power lines were blown down and we had a blackout of several hours.
电线被吹断了，我们停了几个小时电。