Podauger
纵槽钻头
🗣️ 情景例句
I'm kind of boring. I really don't have many hobbies.
我这个人没什么劲。 我真的没什么爱好。
Did you work all day?
你整天工作吗？
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit,
穿过深水的海浪使水面上的一个微粒按照一种近乎圆形的轨道移动，