No one knows how man learned to make words.Perhaps he began by making sounds like those made by an这篇短文 的翻译

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No one knows how man learned to make words.Perhaps he began by making sounds like those made by an
这篇短文 的翻译

短文?你是不是没发完这文章啊?
No one knows how man learned to make words.---没有人知道人类是如何学会造词的.