如何英语表达15

1、fifteen英[ˌfɪfˈtiːn]美[ˌfɪfˈtiːn]n.十五; 十五个人组成的橄榄球队;num.十五。

2、[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。