A planet is a celestial body orbiting a star.
行星是环绕著恒星公转的天体。
The highest point reached in the apparent motion of a celestial body.
天顶一个天体的明显运动达到最高点。
The so-called "food" is a celestial body that was another celestial body or its Heiying Yanzhe all or part of the astronomical scene.
所谓"食"就是指一个天体被另一个天体或其黑影全部或部分掩遮的天文景象。
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