A Frisbee has this rim so you can actually try to make it rotate around the point on the circumference by holding it near the rim and spinning it there.
一个飞盘是有边缘，所以可以，让它绕着边缘上某点旋转，就像这样，绕边缘点转动它。
A Frisbee has this rim so you can actually try to make it rotate around the point on the circumference by holding it near the rim and spinning it there.
一个飞盘是有边缘，所以可以，让它绕着边缘上某点旋转，就像这样，绕边缘点转动它。
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