If you are not familiar with the owner, guests should call or write note to express his appreciation.

如果你与主人不太熟，作客后应打电话或写短柬以表谢意。

youdao

If you are not familiar with the owner, guests should call or write note to express his appreciation.

如果你与主人不太熟，作客后应打电话或写短柬以表谢意。

youdao