Hold doors, pull out chairs, offer an umbrella when its raining, etc.

帮她开门，拉出椅子，在下雨时撑伞，等等，都属于此类。

youdao

Hold doors, pull out chairs, offer an umbrella when its raining, etc.

帮她开门，拉出椅子，在下雨时撑伞，等等，都属于此类。

youdao