在人类历史的长河中，10年只是短暂的瞬间。
Ten years is just a very brief moment in the long course of human history.
在悠久的历史长河中人类逐渐脱离野蛮状态而进入文明。
Man has gradually emerged from barbarism into civilization over the long history.
在悠久的历史长河中人类逐渐脱离野蛮状态而进入文明。
Man has gradually emerged from barbarism into civilization over the long history.
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