天文学家目前还没有发现属于最古老的世代的恒星——星族III的恒星在还没有“金属”的宇宙中诞生。
Astronomers have not yet discovered any of what should be the oldest generation, Population III stars born in a universe without "metals."
阿斯尔系内蒙古锡林郭勒盟南部地区的一种民间器乐曲总称，是蒙古族一个古老乐种。
Asar is the general saying of the ancient folk instrumental music in the south of Xilingol league of Inner Mongolia Autonomous region and it is an ancient music variety.
契丹族是我国北方古老的民族之一。
Qidan nationality is one of the ancient nationalities in Northern China.
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