美国地质调查局认为，乌克兰有50种重要矿物，包括几种类型的稀土、镍和锂。根据乌克兰经济部的数据，在欧盟认定的34种关键矿产资源中，乌克兰拥有22种。乌克兰地质研究所称，乌克兰拥有 ...
When is the Mid-Autumn Festival? The Mid-Autumn Festival falls on the fifteenth day of the eight month in the traditional Chinese lunar calendar.
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