起因不明 meaning in English
start from some unknown cause 短语和例子
Examples
- There is no powerful medicine for curing the mysterious strain of influenza with its complications , for it is resistant to current antibiotics
现在还没有治疗这种起因不明、带并发症的流行感冒的特效药，因为它对现有的抗菌素具有抗药性。