Commutations
(commutation 的复数) n. 交换, 变换, 代替\\n[电] 整流
🗣️ 情景例句
I'll be here when he calls back. Much appreciated.
他打电话时我会在这，太感谢你了！
Who is speaking?I don't recognize your voice.
阁下是那一位？我听不出你的声音。
No, thank you.
不了，谢谢。