Definition: polite behavior Level: B2
员工必须始终礼貌对待顾客。
Staff must always treat customers with ___courtesy.
他甚至没有最起码的礼貌来回复我的邮件。
He didn't even have the ___courtesy to reply to my email.
事业上的成功常常取决于表现出基本的礼貌。
Professional success often depends on showing basic ___courtesy.
