15的英语：fifteen。读音：英[ˌfɪfˈtiːn]，美[ˌfɪfˈtiːn]。短语搭配：a fifteen minutes frequency每个十五分钟测一次。

双语例句
1、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。
2、The wiring in your house should be renewed every ten to fifteen years.
你家里的电线应该每十到十五年更新一次。
3、He's in the first fifteen.
他是业余英式橄榄球队队员。
4、The room measures fifteen feet by twenty feet.
房间15英尺宽20英尺长。
5、In its heyday, the company ran trains every fifteen minutes.
公司在最兴隆时期每隔十五分钟就开出一列火车。