蚕绩蟹匡

Explanation: Marina: back shell. Name is a real non-metaphor, the two unrelated. 　　Usage: Joint type; as object, attribute; containing derogatory 　　Source: Han Dai Holy "Book of Rites under the Tan Gong": "Adults are not as bad brother who died, will be heard into the slaughter sub Gao, Sui Wei decline. Adults, saying: 'silkworm crabs are Marina is merit, Fan Zeguan The cicadas have ERSITY; brother is dead child whom Gao bad '. " Thesaurus:  bore a hole draw wrong conclusions by false analogy, Not deserve, (an expression used to show humbleness and politeness ashamed to accept (an honor), Not afford to