In other words, opportunity is probably knocking at your door right this moment.

换句话说，机会可能就会在此刻降临到你面前。

youdao

But if you do not do what is right, sin is crouching at your door; it desires to have you, but you must master it.

你若行得不好，罪就伏在门前。它必恋慕你，你却要制伏它。

youdao

Put an empty box marked Declutter right at your front door so that you can't get out of the house without thinking about it.

放一个标记着declutter的空盒子放在你的前门这样除非你想到declutter否则别想出门。

youdao

It was the equivalent of the cops breaking down your door at 6am: perfectly legitimate if you have the legal right to do so, but it can seem excessive.

BBC: Cypriot bank worker with placard