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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Astronomers % are involved in the observation, analysis and research of various astronomical phenomena, such as the movements of celestial bodies like moons, planets, stars and galaxies.

天文学家的工作涉及到观察、分析以及研究各种各样的天文现象，比如月亮、行星、恒星、银河等天体的运动。

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Ancient mariners, whether they be Vikings or South Sea Islanders, would navigate with astronomical bearings by reading the celestial bodies as well as landmarks.

古代的航海家，不管是维京人还是南太平洋岛民，都会携带天文仪出海，以观天象和地标。

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