Former South African President Nelson Mandela spent twenty-seven years in prison.

VOA: special.2010.02.07

I'm just going to go a little bit further on -Rupert Murdoch bought The Times of London in 1981 that was twenty-seven years ago.

我会讲得深入一点,鲁珀特·默多克在27年前的1981年,收购了伦敦的《泰晤士报》

耶鲁公开课 - 金融市场课程节选

And a twenty-four-year-old Milton, after seven years of education, simply decides not to go. Instead of joining the ministry, Milton instead returns home and he stays at home without any means of supporting himself for six years.

而24岁的弥尔顿，在结束了7年的学业之后，却决定不那么做,他反而是回到了家中,在家里呆了6年。

耶鲁公开课 - 弥尔顿课程节选

Louis Lataif spent twenty-seven years in the car industry at Ford.

VOA: special.2010.02.05

He was head coach of men's basketball for twenty-seven years.

VOA: special.2010.06.10

In the next seven years, between nineteen-twenty-nine and nineteen-thirty-six, he seemed to re-invent the novel with every book he wrote.

VOA: special.2010.01.03

He found that those who came after Title Nine had a seven percent lower risk of obesity twenty to twenty-five years later.

VOA: special.2010.03.04

They must be at least twenty-five years old, an American citizen for at least seven years and live in the state they represent.

VOA: special.2009.08.14

Two years later, about twenty-seven thousand Boy Scouts attended the Jamboree in Washington.

VOA: special.2010.08.06

They married in nineteen sixty-seven, when she was twenty-one years old.

VOA: special.2010.04.04