According to one legend, once in ancient times, a celestial swan came into the mortal world where it was shot down by a hunter.

有一个传说是这样的，在古代，有一位神界天鹅闯入人间被猎手误杀。

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China is an old country, its ancient people had knowledge of distant seas and of celestial navigation.

中国是一个古老的国家。它的古代人民具有远洋知识和天体导航知识。

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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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This is why I have come here: to ride through the remote Tian-Shan (Celestial Mountains) mountain range along ancient routes and through wide high-altitude pastures, known as jailoos, where shepherds have been grazing livestock for centuries.

BBC: The way of the shepherd: Horse trekking through Kyrgyzstan