“突然停电了”用英语怎么说?

There was a sudden power outage.
地道地说停电要说power outage

out of power也可以
We were suddenly out of power.

停电
power cut
power failure
[电] black out
outage
双语例句
1.
停电后， 城市一片混乱。
After the failure of electricity supply the city was in chaos.
2.
停电使交通运输陷入紧急状况。
A power failure created an emergency in traffic and transportation.
3.
每当停电的时候，人们在摇曳的烛光下四处摸索；汽车在马路上彷徨-因为没有交通灯做导向；电冰箱不再“嗡嗡”，里面的食物也要变质了。
When there is a power failure, people grope about in flickering candlelight, cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators.

The electricity goes out suddenly
Suddenly, there was a blackout
都可以的哦。
另外，具体的翻译也可以看上下文，如：The lights go out sometimes.有时突然会停电。

口语的说法是
power
off，但也可以说the
power
halts等。
power
off确实是主动的、人为的断电。

suddenly.the electricity went off