Infection with head lice is no reflection on personal hygiene.头上生虱子并不说明不讲个人卫生。She's careless about her hygiene.她不注意个人卫生。In the interests of hygiene, please wash your hands.为了卫生，请洗手。...
谁是这条新高速公路的承包人?Who were the contractors on the new motorway ? ie Who built it?地板铺设和室外美化将由承包人来做.The flooring and landscaping will be done by contractors.当时国防部还不能直接与外界的承包人联系.In those days , the O . D . C . couldn't dea...