Stepmotor
n. 步进电动机
🗣️ 情景例句
Well, what's going on?
噢， 怎么啦？
To play the guitar
弹吉他
We need to find one about 30 centimetres(cm) by 30 cm by 50 cm.
我们需要找一只尺寸大约为30（厘米）X 30（厘米）X 50（厘米）的水箱。