In view of the speech instrumentality state speech has four types.

从工具性看，话语有四种类型。

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He was able to locate his relatives through the instrumentality of the police.

靠警察的帮助，他找到了他的亲属。

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He was able to locate his relatives through the instrumentality of the police.

靠警察的帮助，他找到了他的亲属。

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