1、十五的英语是fifteen。
2、fifteen的读音：英[ˌfɪfˈtiːn]，美[ˌfɪfˈtiːn]。
3、[例句]In those days most people left school when they were only fifteen years old.那时候，大多数人上学只上到十五岁。
4、复数：fifteens
