Commutators
(commutator 的复数) n. 换向器, 整流器\\n[化] 对易式; 整流器
🗣️ 情景例句
To apologize for leaving so early,I brought you a little gift.
为了表示我对提早走掉的歉意，我给你带了一件小礼物。
I'm very much obliged to you.
非常感谢您。
'Would a later train get you to work on time?' asked the inspector.
“晚一点儿的车也能送您按时上班吗？”