Communtator compound
[建] 用于换向器或整流器的润滑剂
🧩 词语组成解析
[建] 换向器, 整流器, 整流子
🗣️ 情景例句
will read a poem by Robert Frost.
要朗读Robert Frost作的一首诗。
Are these books all yours?
这些书全是你的吗？
She wanted to find out whether it would be comfortable to wear.
想看穿起来是否舒服。