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Thee invention of the wheel was a milestone in human history.
发明车轮是人类历史上的一个里程碑。 。
youdao
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The invention of the wheel was a milestone in human history.
发现车轮是人类历史上的一个里程碑。
youdao
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The invention of the wheel was a milestone in human history.
发现车轮是人类历史上的一个里程碑。
youdao