a.Chinese, How to be polite, please
a.Chinese, How to be polite, thank you
a.Chinese, How to be polite, sorry
a.Chinese, How to be polite, It‘s OK.
a.Chinese, How to be polite, You’re welcome.
a.Chinese, How to be polite, no problem
a.Chinese, How to be polite, excuse me
a.Chinese, How to be polite, wait a moment
a.Chinese, How to be polite, sorry to bother you
a.Chinese, How to be polite, thank you very much
