The number of fifteen
十五───fifteen;数字───number
Three fives are fifteen.───三个五等于十五。
talks began some fifteen minutes late.───商谈迟了约十五分钟才开始。
We paid off our mortgage after fifteen years.───我们历经十五年的时间还清了抵押借款。
It took fifteen minutes for her to realize that she had spelled my name incorrectly.───她意识到拼错我的名字的时候已经过去了十五分钟。
He had gone Clear by the age of fifteen, and the next year he dropped out of high school to join the Sea Org.───他十五岁就成为了“净化者”，第二年他从高中退学加入了海洋机构。
You know, that was the hardest part about having to portray you, grinning like an idiot every fifteen minutes.───你要知道，每隔15分像傻子一样的假笑是刻画你最难的地方。
Fifteen thousand bird watchers visit annually.
They met when she was fifteen .
He started beating me when I was about fifteen but I didn't do anything to provoke him.
A group of students filed in, fourteen or fifteen all told.
The wind breezed up to fifteen knots.