Researchers are improving systems to measure a teacher's performance throughout the year, and, with three years of data, it's usually possible to tell which teachers are failing.

研究人员正在改进衡量教师全年表现的系统，并且通过三年的数据，通常可以判断出哪些教师表现不佳。

youdao

According to the survey, the growth of unmarried women with three years at college, four years at university and a postgraduate degree are 7.6 percent, 6.3 percent and 0.4 percent respectively.

调查显示，大专学历、本科学历和研究生学历的未婚女性增长率分别为7.6%、6.3%和0.4%。

youdao

She acted with a touring company for three years.

她在一巡回剧团里演出了三年。

《牛津词典》

Just three years later, she was performing with famous jazz and blues musicians including Clark Terry, Oscar Peterson and Joe Williams.

VOA: special.2009.10.02

It's great idea with a lot of hard work and then you work at it for year, two years, three years, four years, five years, six years, seven years, eight, nine, 10.

勤奋的工作，一年两年，三年,有或者更多，甚至10年，是很好的想法。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

Huge, and one of the things that I argue in this book and also in the Princeton Projiect on National Security which I co-directed with John Ikenberry over the last three years is we have been singel-mindedly focused on the war on terror.

很大，我在这本书中试图说明一点,在普林斯顿国家安全项目中也试着强调,这一项目在过去3年内由我和约翰伊肯伯里共同负责,那就是我们仅仅盯在了一点上,我们盯着恐怖主义战争不放。

普林斯顿公开课 - 国际座谈会课程节选

So unless the FDA grants its request, the biotech is stuck with three years of exclusivity.

FORBES: Gilead Challenges FDA Over Exclusivity For Its Latest AIDS Drug

Sampson was forced out and the NCAA slapped the previously pristine program with three years' probation.

WSJ: Indiana Hoosiers Are Back, but Missing Bob Knight

With three years left to go, Morocco is one of a small group on track, a September 2011 study found.

FORBES: Moroccan Moms Benefit from Maternal Health Revolution