aphelion [æ'fi:lɪən]

单词级别

第12级

基本释义

n.远日点；远核点

英英释义

apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun

参考例句

The point in the orbit nearest the Sun is called perihelion, while the point farthest is called aphelion. 在轨道上最接近太阳的点被称为近日点，而最远离太阳的点被称为远日点。
But it's not that simple either, because the dates of the perihelion and aphelion are also shifting. 但这并不是简单的一件事情，因为近日点和远日点的日期都会变换。

推荐阅读