名詞 black out:

1. a suspension of radio or tv broadcasting
   同義詞：blackout
2. darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
   同義詞：blackout, brownout, dimout
3. the failure of electric power for a general region
   同義詞：blackout
4. a momentary loss of consciousness
   同義詞：blackout
5. partial or total loss of memory
   同義詞：amnesia, memory loss, blackout

動詞 black out:

1. obliterate or extinguish
2. darken completely
   同義詞：blacken out
3. suppress by censorship as for political reasons
4. lose consciousness due to a sudden trauma, for example
   同義詞：zonk out, pass out

1. Dictators usually black out all criticism of the government.
   獨裁者通常都禁止批評政府的言論公開發(fā)表。
2. During the war we had to black out all our windows.
   戰(zhàn)時我們必須用黑布遮著窗口以免透光。
3. The plane dived suddenly, causing the pilot to black out.
   飛機(jī)猛然俯沖致使駕駛員昏厥。
4. Such a steep descent in an airplane would have blacked out a fledging.
   飛機(jī)作這樣的急速下降本來是會使缺乏飛行經(jīng)驗的人眼前發(fā)黑的。