门口

In a sentence

• 我在门口等你。

  I am waiting for you at the doorway.

  Here, '门口' (doorway) is used to specify the location of the speaker.

• 猫正在门口玩耍。

  The cat is playing at the entrance.

  In this sentence, '门口' refers to the area around the door or entrance where the action is taking place.

• 请把快递放在门口。

  Please leave the delivery at the doorway.

  Here, '门口' is used to define the place where the delivery should be placed - at the entrance or close to the door.