Autodrum
自动成型机头(鼓式或半鼓式)
🗣️ 情景例句
In less than two hours,
在不到两个小时之后，
I took charge of the group.
我管理过那批人。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，