Primary tuberculosis is symptomless in the great majority of individuals.

原发性肺结核是无症状在绝大多数个人。

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Currently, tuberculosis is still one of the primary causes of death.

目前，结核病仍然是引发死亡的主要原因之一。

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Currently, tuberculosis is still one of the primary causes of death.

目前，结核病仍然是引发死亡的主要原因之一。

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