Commutations
(commutation 的复数) n. 交换, 变换, 代替\\n[电] 整流
🗣️ 情景例句
Excuse me, do you know...?
打扰一下，你知道...？
I get up at 6 o'clock every day.
我每天在6点钟起床。
She walked slowly into the hall and at once noticed that all the room doors were open,
她慢慢地走进前厅，立即发现所有的房门都敞开着，