行星绕太阳运行的轨道是近圆形的椭圆，太阳位于每个椭圆中心的附近。
Planets orbit the sun in oval-shaped paths called ellipses, and the sun is slightly off to the side of the center of each ellipse.
迄今为止所发现的454颗系外行星中，多颗都具有极近椭圆形的轨道，这意味着行星与它们的母星并不总保持相同距离。
Many of the 454 exoplanets discovered to date have highly elliptical orbits, meaning the planets are not always the same distance from their parent star.
他只有一组词和大家的意见不一样，他把“远”和正方形，“近”和圆形配成了对。
He made only one match differing from the consensus, assigning 'far' to square and 'near' to circle.
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