词汇	环形管
释义	环形管医ring tube
随便看	collective non-farming construction land collective note collective notes to the canon of materia medica collective noun collective nouns collective nuclear model collective number collective numbers collective numeral collective numerals collective nursery collective occurrence collective offence collective offense collective of prisoners collective of probationers collective of student teachers collective open sales system collective operation collective opinion Collective opinions collective opposes collective opposition collective optics collective organization