courtesy /ˈkɜːtəsi/
noun
【不规则形式】 pl. -ies
1
[U] 礼貌；谦恭；彬彬有礼
polite behaviour that shows respect for other people
同义词： politeness
I was treated with the utmost courtesy by the staff.
我受到了工作人员极有礼貌的接待。
It's only common courtesy to tell the neighbours that we'll be having a party (= the sort of behaviour that people would expect) .
告诉邻居我们要举行聚会，这是起码的礼貌。
2
[C, usually pl.] (formal) （正式场合见面时的）客气话，礼貌
a polite thing that you say or do when you meet people in formal situations
an exchange of courtesies before the meeting
会议开始前互致问候
adj.
[only before noun] (of a bus, car, etc. 公共汽车、小轿车等) 免费乘坐（或使用）的
provided free, at no cost to the person using it
A courtesy bus operates between the hotel and the town centre.
有免费的公共汽车往返于旅馆和市中心之间。
The dealer will provide you with a courtesy car while your vehicle is being repaired.
车辆维修期间，经销商会提供免费使用的汽车。
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