Stepmotor
n. 步进电动机
🗣️ 情景例句
I'm a senior here, so let me know if I can help you with anything.
我是大四的老生，有什么能帮忙的尽管说一声。
I've never heard that piece before.Who wrote it?
我从来没听过那乐章，那是谁写的？
Hi, Carol!Where's Tom?
你好，卡罗尔！汤姆在哪儿？