🧩 词语组成解析
sir
[sɝ]
n. 先生;（用于姓名前）爵士;（中小学生对男教师的称呼）先生;老师;
n. 加勒哈德(亚瑟王的骑士), 高洁之士
🗣️ 情景例句
Many business people turn off their pagers and cell phones during their leisure time.
许多商人在他们的休息时间里都把传呼机和移动电话关掉。
To fall to pass the exam
考试落榜
Above all, he refused to make any personal gain from his political work.
尤其是，他拒绝从所从事的政治事业中谋取个人利益。