Commutations
(commutation 的复数) n. 交换, 变换, 代替\\n[电] 整流
🗣️ 情景例句
Know what? Aren't you going to tell me?
什么事？你不打算告诉我吗？
To youth I have but words of counsel -- work, work, work.
对青年人，我要奉劝几句话∶工作，工作，再工作。
He set out to discover whether the wagging dance showed direction.
他开始着手找出摇摆舞是否表示方向。