🧩 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;
Robert
[['rɔbət]]
[法] 警察
n. 沃波尔（姓氏）
🗣️ 情景例句
Miss Chen is not in right now. She went shopping.
陈小姐现在不在，她去买东西了。
Last year I studied sociology and political science in school.
去年，我在学校攻读了社会学和政治学课程。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，