Oscillations
n. 振动；振幅（oscillation的复数形式）
🗣️ 情景例句
When did the Roman Empire come into being?
罗马帝国是什么时候形成的？
He is a manager of a famous corporation.
他是一家着名公司的经理。
I insist on telling him how great you were.
我一定要告诉他你是多么了不起。