我们可以画出地球绕太阳运行的轨迹。

We can draw the earth's orbit round the sun.

《新英汉大辞典》

黄道是天穹中太阳、月亮和行星运行的轨迹带。

The zodiac is the band around the sky where the sun, moon and planets move through.

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我能计算出天体运行的轨迹，却无法预料到人们的疯狂。

I can calculate the trajectory of heavenly bodies, but not the madness of men.

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