🧩 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. 斯蒂尔（姓氏）
🗣️ 情景例句
A pentiunIII 500 can run at 8 times the speed of a DX4 100. But is also runs a lot hotter.
奔腾III 500 的速度比DX4 100 要快8倍，但运行时散发的热量要更大。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
Check the prices before you decide whether to buy one.
先把价格核对一下，再决定该不该买。