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The coal industry must deepen supply-side structural reforms and improve supply quality.
Don't look for the needle in the haystack. Just buy the haystack!
科学中最激动人心的短语,预示着新发现的不是“我找到了!”而是“这有点奇怪……”
生活的美在于它的不可预测性;正是这一点让它值得活下去。