Palstance
角速度(即ω=2πｆ)
🗣️ 情景例句
Sir, everything now is offered with a great discount.
先生，所有的东西都在打很大的折扣。
For once, I haven't taken the wrong train!
我从来不曾误搭过一次列车。
What did he do?
他是干什么的？