Subsets
n. 子集( subset的复数形式 )
🗣️ 情景例句
All right. OK.
好吧。行了。
We need skilled electricians.
我们需要有技术的电工。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把这种仪器安装在距震源700多英里远的地方，