🧩 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;
david
[['deivid]]
n. 大卫；戴维（男子名）
Bruce
[[bru:s]]
n. 布鲁斯
🗣️ 情景例句
I don't have time to take any elective classes.
我没有时间去上任何选修课。
He has been working in advertising for ten years, but now he is teaching.
他曾经在广告公司服务十年，但现在在当老师。
It would help if you could try to speak a little slower.
请你尽量放慢说话速度。