brown out 把灯光弄暗. black out 熄灯、停电. 两者在限电时的意思也不大相同，前者是限制用电电压，后者则是直接拉闸停电. 本回答由 …
【 Blackout 】 is a total electrical power failure over a large area. In 1965 and 1989, blackouts affected areas of New York. …