HP infection and the precancerous condition dysplasia are common in younger women.HP感染和不典型增生的癌前期病变在年轻人里也很常见.a virulent infection致命的传染病Objective To study urinary infection caused by methicillin resistant staphylococcus au...
He is still the butt of cruel jokes about his humble origins.他仍然因出身低微而被人无情嘲笑。The precise details of the origins of life remain hidden.生命起源的确切详情仍是个谜。the origins of life on earth地球上生命的起源...