When man stepped into the civilized society, the appearance of the bronze ware, which is much hard than the earthenware, greatly precipitated the civilization course of human beings.
人类进入文明社会之际，硬度远远高于陶器的青铜器，有力地促进了人类的文明进程。
When man stepped into the civilized society, the appearance of the bronze ware, which is much hard than the earthenware, greatly precipitated the civilization course of human beings.
人类进入文明社会之际，硬度远远高于陶器的青铜器，有力地促进了人类的文明进程。
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