🧩 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. 罗宾逊（男子名）
🗣️ 情景例句
How about next Saturday?
下周六如何？
Mr. Green is a member of the faculty.
格林先生是大学教员。
Have you received a letter from Jim yet?
你收到了吉姆的来信没有？