hear a knock

While he was half asleep , he seemed to hear a knock on the door .

矇胧中他仿佛听到有人敲门。

If you hear a knock at your front door and you get up to answer it only to find no one there , open the door wide for a couple of seconds and then close it .

如果你听见有人在敲前门，你前去应门，但是发现什么人也没有，门大大地敞开着持续了几秒然后再关上。

Do you hear a knock at the door ？ " Hello , my mom wants to know if we can borrow as many empty jars , bottles , pots , or vessels as you have ？ We 'll be sure to return them when we are finished ! "

有人在敲门呢。快去开门！“您好！我妈妈想管您借空瓶子，罐子，锅，任何能承东西的都行。我们用完一定会还回来的''。

Sitting in the cold examining room feeling vulnerable and dreading the encounter , I 'd hear a quick knock on the door , and without delay , it opened .

坐在寒冷的审查感到脆弱的空间，害怕遇到，我听到门上快速敲门，毫不拖延地，它打开。