单词	semigroup
释义	semigroup noun semi·​group ˈse-mē-ˌgrüp  ˈse-ˌmī-, -mi- : a mathematical set that is closed under an associative binary operation Word History First Known Use 1904, in the meaning defined above
随便看	necropoleis necropoles necropoli necropolis necropolises necropsied necropsies necropsy necropsying necroscopies necrosed necroses necrosing necrosis necrotic necrotic ring spot necrotic stomatitis necrotise necrotised necrotises necrotising necrotize necrotized necrotizes necrotizing

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。