Like most of Jupiter's moons, Amalthea rotates synchronously; its long axis is pointed toward Jupiter.像大多数的木星卫星, 木卫五同步自转, 它的长轴直指木星.The motor of this cargo winch rotates too quickly. It needs readjusting.这台起货机的马达旋转太快...
The earth rotates on its axis once every 24 hours.地球每24小时依其轴心自转一次.The camshaft rotates in phase with the crankshaft, but at half its speed.凸轮轴和曲轴协调旋转, 但速度仅是曲轴的一半.The earth rotates once a day on its axis.地球绕它的自转轴一天旋转一周....