elliptical
elliptical 英 [ɪˈlɪptɪkl] 美 [ɪˈlɪptɪkl]
adj. 椭圆的；省略的
- The word elliptical is derived from the oval shape known as an ellipse. Many comets have an elliptical orbit around the Sun that brings them closer at some times and farther away at others.
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- adj. 椭圆的；省略的
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1. If your knees bother you, choose a stationary bike, an elliptical machine, or go for a swim.
如果你的膝盖不好，那你可以选择一辆健身自行车、一个椭圆机，或者去游泳。
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2. However, if an eclipse occurs while the Moon is on the far side of its elliptical orbit, it appears smaller than the Sun and can't completely cover it.
但是如果日食出现在月球处于它的椭圆轨道远地点的时候，它显得比太阳小而无法完全遮盖住太阳。
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3. One caveat, says Richard Ellis of Caltech, is that the researchers assumed that red dwarfs in the elliptical galaxies have the same chemical composition as red dwarfs in the Milky Way.
但是且慢，加州理工学院的理查德·埃利斯说，问题是研究者们假设椭圆星系中的红矮星与银河系中的红矮星有相同的化学成分。
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