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	calculus of variations calculuses Calcutta Calcutta hemp calcuttae calcuttan calcuttans calcuttas caldaria Calder caldera Caldera Rodríguez calderas calderón Calderón (Hinojosa) Calderón de la Barca calderón hinojosa caldo verde caldron caldrons Caldwell calean Calebite caleche caleches

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