Arithmatic
算术
🗣️ 情景例句
Well. It will be up immediately.
好，立即给你送去。
He brushes his teeth.
他在刷牙。
In a long drop, they reach speeds of 60 miles an hour and more.
在一个长长的跌落过程中，它们可以达到每小时60里甚至更快的速度。