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This is the milepost of human space exploration.
这是人类探索太空的里程碑。
youdao
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The division of labor of hand and foot, it is a milepost of human evolution.
手与脚的分工，是人类进化的一个里程碑。
youdao
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The division of labor of hand and foot, it is a milepost of human evolution.
手与脚的分工，是人类进化的一个里程碑。
youdao