求翻译：语言是人类使用的一种相互交流的主要手段。语言虽然能被转变成诸如书写文字等其他媒介，但主要还是口头上的。如果不能利用口头交流手段（如聋哑人的情况），则可使用视觉手段（如手势语）。语言的一个显著特点是语言符号与语言意义之间的关系是任意的。语言可以用来讨论各种广泛的话题，这个特点使语言能够区别于动物之间的交流。是什么意思？

The language is the primary means of human use of a mutual exchange. The language can be transformed into other media such as writing text, but mainly verbal. If you can not use oral means of communication (such as the deaf), you can use visual means (such as sign language). Language a notable featu

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Language is a primary means of interaction of human use. Language can be transformed into other media such as writing, but mainly on the oral. If you are not using oral communication means (such as the situation of the deaf), you can use the Visual Tools (such as sign language). A notable feature of

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