重 点
People sometimes say sir as a polite way of addressing a man whose name they do not know, or an older man. 先生 (对男性的客气称呼)
noun [专属名词] 先生，长官(尊称);男老师;阁下
Sir is the title used in front of the name of a knight or baronet. (爵士或从男爵名字前的头衔) 爵士 • She introduced me to Sir Tobias and Lady Clarke. 她把我介绍给托拜厄斯爵士和克拉克夫人
- sir 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）
- Lesson 3&4 Sorry, sir. sir 名词: 先生
- Lesson 11&12 Is this your shirt?
- Lesson 045&46 The boss’s letter
- Lesson 087&88 A car crash
- Lesson 095&96 Tickets, please
- Lesson 097&98 A small blue case
- Lesson 113&114 Small change
