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	komatik komatiks kombu kombucha kombus Komi Komi Republic komies kominuter komis komitadji komitaji komitajis kommandantur kommandantura Kommandatura kommers kommetje kommos Komodo Komodo dragon komondor komondorok komondors Komorowski

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