1 年前
视频简介
Our solar system was the first to attract humans and filled their souls with awe and fear. At the same time brave minds had been curious about its nature and kept speculating about the universe and its objects. However since the birth of modern science and technology, the true nature of universe has been known and at this point of time, universe is so huge that our hearts are f...。展现了献身水电建设者的博大胸怀高尚情操奉献精神。。
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