至少在这些癌症中，还有一个病因可能是来自人类乳突病毒(HPV)。
The suspected cause of at least some of these cancers is human papillomavirus, or H.P.V..
祁东煤矿风井在建井过程中，发生钻井井壁突水事故，井筒被淹。
The mine flooding happed during construction of the air shaft in Qidong Coal mine.
祁东煤矿风井在建井过程中，发生钻井井壁突水事故，井筒被淹。
The mine flooding happed during construction of the air shaft in Qidong Coal mine.
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