在过去二十年里,存在通过血液传染的病毒负责非甲非乙型肝炎怀疑但尚未确定。
During the last two decades, the existence of a blood-borne virus responsible for non-A, non-B hepatitis was suspected but not identified.
在过去二十年里,存在通过血液传染的病毒负责非甲非乙型肝炎怀疑但尚未确定。
During the last two decades, the existence of a blood-borne virus responsible for non-A, non-B hepatitis was suspected but not identified.
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