courtesy
US /ˈkɝː.t̬ə.si/
UK /ˈkɝː.t̬ə.si/

1.
禮貌, 客氣
the showing of politeness in one's attitude and behavior toward others
:
•
He treated everyone with great courtesy.
他以極大的禮貌對待每個人。
•
It's common courtesy to hold the door open for others.
為他人開門是常見的禮節。