No sooner had I sat down than there was a loud knock on the door.

我刚坐下就有人大声敲门。

《牛津词典》

No sooner had she fallen asleep than she heard a knock at the door.

她刚睡着就听到了敲门声。

youdao

For long there was no answer, then again the knock.

很长时间没有回答，然后又是敲门声。

youdao

In these cases, police spokespersons defend the actions of the officers by explaining that in these no-knock raids, securing the premises and eliminating immediate threats to officer safety is standard operating procedure.

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But managers at the Truro hospital said there was no evidence of knock-on effects so far.

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Sorry, no Angry Birds knock-offs.

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