The cause of his illness and death remain undetermined.

他的疾病和死亡原因仍未确定。

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Specimens tested for SARS infection prior to the man's death were negative, but the cause of death remained undetermined.

在该男子死亡之前对SARS感染检测的标本呈阴性，但是死亡原因仍然不能确定。

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The polysemy of POP music's definition is easy to cause research target to be undetermined, therefore a determinative definition of popular music is prerequisite.

流行音乐定义的多义性容易导致论述对象的模糊，所以限定流行音乐定义的范围是论文得以展开论述的前提条件。

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Despite these findings, District Attorney Rex Gore was unwilling to change his initial determination or rule the cause of death as undetermined.

FORBES: Analysis Of 13-Year Mysterious Death Of Cape Fear Police Woman