n.谦恭有礼,礼貌,请安,有礼貌的举止[言词],承蒙
adj.殷勤的,出于礼节的
The President paid a courtesy call on Emperor Akihito.
总统对明仁天皇进行了礼节性的拜访。
The air was fresh, courtesy of three holes in the roof.
房顶有3个洞,所以空气很清新。
A courtesy shuttle bus operates between the hotel and the town.
有免费班车往返于酒店和市区。