They were almost completely cut off from the outside world.
他们几乎完全与外界绝缘了。
Finally he reached a lonely island which was completely cut off from the outside world.
最后，他来到了一个完全和外界隔绝的孤岛上。
I can't say I've completely cut off any of the burners, but I've turned some of them way down.
我不能说自己已经完全熄掉其中任何一只炉子，但我已经将一部分火苗关小。
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