As modern linguistics aims to describe and analyze the language people actually use, and not to lay down rules for "correct" linguistic behavior,it is said to be （）.

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locutionary act

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Give the description of the following sound segments in English.
[k];[z];[w];[u:];[i]

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Componential analysis is based on the belief that the meaning of a word cannot be dissected into meaning components, called semantic feature.

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Duality

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