虽然卫星的快速旋转足以将它们挤压成一个光滑的椭圆形，但它无法解释碟形中心的边缘。

While the moons' rapid rotation would be enough to squash them into a smooth oval, it can't explain the rim around the centre of the saucer shape.

youdao

长期以来，这种密度上的相似性促使人们猜测月球是从快速旋转的地球上分裂出来的，但这种想法创始于两次观测。

This similarity in density has long prompted speculation that the Moon split away from a rapidly rotating Earth, but this idea founders on two observations.

youdao

他快速旋转着手里的帽子。

He twirled his hat in his hand.

《牛津词典》