地球是人类赖以生存的家园，从数万年前成长发展至今，人类已经繁荣昌盛了，但是人类对于庇护他们长大的家园又了解多少呢？人类是否已经对自己的家园了如指掌？抑或一无所知？地球上还有太多的未知等待着人类去了解，还有太多的恩赐在等待着被发觉。只有真正认识了解了这个家园，人类才能更好的生存。
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