In nineteen thirty-four, John Lomax became honorary consultant and curator of the Archive of American Folk Song at the Library of Congress.

VOA: special.2010.01.18

There's twenty-one days, there's thirty days, there's twenty-four hours. Now look at this!

有二十一天法,三十天法,二十四小时法,还有这个

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In nineteen thirty-four, he began studying English at the University of Michigan in Ann Arbor.

VOA: special.2009.11.29

Afghanistan has a population estimated at almost thirty-four million people.

VOA: special.2009.08.18