Commutators
(commutator 的复数) n. 换向器, 整流器\\n[化] 对易式; 整流器
🗣️ 情景例句
How do you want your hot dogs?
你的热狗想要什么调料？
It doesn't work.
坏了；不动了。
Houses -- often three storeys high -- were built of stone.
房子一般有3层楼高，用石块修建。