Commutators
(commutator 的复数) n. 换向器, 整流器\\n[化] 对易式; 整流器
🗣️ 情景例句
Ladies and gentlemen,
各位女士 各位先生
How much does she need?
她需要多少？
Thank you. Lucy and Lily, come here, please.
谢谢你，露茜和莉莉，请过来吧！