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	geds gedunk gee gee ho gee hydrangea gee pole gee string gee-gee gee-hup gee-throw gee-up gee-whiz geebung geebungs Geechee geechees geed geegaw geegaws geeing geek geek out geekdom geeked geeked out

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