If no one to greet him before the door bell or knock on the door, after the owner promised to get access to the rear.

如无人迎候，进门先按铃或敲门，经主人应允后方得进入。

youdao

If no one to greet him before the door bell or knock on the door, after the owner promised to get access to the rear.

如无人迎候，进门先按铃或敲门，经主人应允后方得进入。

youdao