The study found that smokers who quit had a seventy percent increased risk of developing the disease in the first six years.

VOA: special.2010.01.13

It took these institutions until 1993--a full six years-- to get their bond allocation back down to where it had been prior to the crash in October 1987.

这些机构直至1993年,整整六年时间,才恢复到1987年10月崩盘之前的,债券投资配置

耶鲁公开课 - 金融市场课程节选

The Conference Board said its consumer confidence index had its biggest jump in six years in May.

VOA: special.2009.05.29

Mary was nine years old. Tommy was six and little Teddy had just turned four.

VOA: special.2009.12.12

"People in the highest quartile of leptin had only a six percent risk of developing dementia over this time, over 12 years,whereas people in the lowest quartile had a 25 percent risk of developing dementia,"

VOA: standard.2009.12.30