The cause of his illness and death remain undetermined.
他的疾病和死亡原因仍未确定。
2
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。
3
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.