Commutators
(commutator 的复数) n. 换向器, 整流器\\n[化] 对易式; 整流器
🗣️ 情景例句
The important thing is that you tried.
重要的是你已经努力过了。
Don't be anxious if I'm late.
如果我回来晚些也不必担忧。
A bird had snatched up the snake from the ground and then dropped it on to the wires.
一只鸟把蛇从地上抓起来，然后把它扔到了电线上。