单词	German cockroach
释义	German cockroach noun : a small active winged cockroach (Blattella germanica) probably of African origin that is a common household pest in the U.S. called also Croton bug Word History First Known Use 1896, in the meaning defined above Medical Definition German cockroach noun Ger·​man cockroach ˌjər-mən-  : a small active winged cockroach of the genus Blattella (B. germanica) that is probably of African origin and is a common household pest in the United States called also Croton bug
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