adj.有礼貌的；殷勤的；客气的，谦恭的
It was courteous of him to help the old lady with her bundles. 他很有礼貌地帮助那个老太太扛包裹。
He was very courteous and well spoken. 他非常殷勤好客，说话又漂亮。
adv.有礼貌地；亲切地
adj.失礼的；无礼貌的
adv.不礼貌地；粗鲁地
