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fifteenth───adj.第十五的；十五分之一的；num.第十五

fifteenths───adj.第十五的；十五分之一的；num.第十五

fifteen───n.十五；十五个；十五人组成的橄榄球队；adj.十五的；num.十五

fifteener───五分之一

fifteeners───五分之一

fifteens───n.十五；十五个；十五人组成的橄榄球队；adj.十五的；num.十五

fifteenthly───adv.第十五地；十五分之一地

There were fifteen-hundred cranes, and often two or three nuclear-powered aircraft carriers and submarines drydocked at a time.───有一千五百辆起重机，经常经常还有两三架和能源的航空运输机和潜艇干船坞。

First, they visited our classroom on the second floor at two fifteen.───首先他们在两点十五分参观我们的教室。

The project involves fifteen developers and testers, separated into two teams, respectively.───这个项目包括十五个开发人员和测试人员，各自分成两个团队。

This kid had, at fifteen, two girlfriends, four children, a Mercedes-Benz, and some very nice clothes.