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
It's no use crying over spilt milk. What's done cannot be undone.
覆水难收。
How much does she drink?
她要喝多少？
'I find it beautiful,' I said.
“我觉得它好看，”我说，