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	bluey blueys bluff bluff formation bluff one's way bluff-bowed bluff-headed bluffed bluffer bluffers bluffest bluffing blufflier bluffliest bluffly bluffness bluffnesses bluffs bluffy bluft bluggy bluid bluing bluings bluish

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。