Oscillations
n. 振动；振幅（oscillation的复数形式）
🗣️ 情景例句
in the school and loving every minute of it.
在学校 ，且乐此不疲， 时时如此。
Be careful whom you appoint to the position of manager.
你该当心你所任命的那个经理。
5 What makes you feel that you are doing well?
5。是什么使你感到自己干得不错？