Commutator compound
[化] 换向器(或整流器)润滑剂(由石蜡和蜂蜡制成)
🧩 词语组成解析
commutator
[['kɔmjuteitə]]
n. 换向器, 整流器\\n[化] 对易式; 整流器
🗣️ 情景例句
Yes?
是吗？
They've been married for quite a few years.
他们结婚好多年了。
We enjoyed ourselves very much!
谢谢你邀请我们作客。我们过得非常愉快！