n.礼貌；好意
They showed us every courtesy. 他们对我们彬彬有礼。
Bill did me the courtesy of answering the question. 比尔很有礼貌地回答我的问题。
Not to do so would show a lack of courtesy. 不这样做就会有失礼之嫌。
n.无礼；无礼貌；粗鲁的言行
