Don't like the slogan of entering the room.

1, duo duo duo (post these three words, knock at the door)

Knock on the door when you come and knock on the door when you leave.

This door has been sealed, so don't knock unless you are sincere.

Honey, if you don't knock on my door, I'll knock on your head.

5, (Come and sell cute, so cute! If you don't knock on my door, I will kiss you quietly.