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
parents are invited to attend--
家长被邀请来参加
We went to a concert last night to hear the symphony orchestra.
我们昨晚去了一个音乐会听交响乐乐队演奏。
It's very hot. It's summer in Australia now!
很热。澳大利亚现在正值夏天！