"Over this four year time period, there was about a 28 percent decrease in these serious MRSA infections that start in the hospital," added Dr. Kallen.

卡伦医生说：“在这四年期间，在医院里发生的‘抗药性金黄葡萄球菌’严重感染病例减少了百分之28。”

youdao

My four-year-old daughter cannot quite tell the time.

我4岁的女儿不太会看时间。

《柯林斯英汉双解大词典》

Research shows that given 15 minutes of free play, four- and five-year-olds will spend a third of this time engaged in spatial, mathematical, and architectural activities.

研究表明，如果给定15分钟的自由玩耍时间，四到五岁的孩子会将其中三分之一的时间花在有关空间、数学和建筑的活动上。

youdao

The Census Bureau says fifty-four percent of full time students at two- and four-year colleges last year were female.

VOA: special.2009.11.19

But here's a four-year instead of factory blocking my view, it's the miss of time blocking my view.

但这里有四年,不是被工厂挡住视线，而是有一段时间没看到。

耶鲁公开课 - 死亡课程节选

Others who want to graduate in three years must pay for the same education as four-year students, but in a shorter period of time.

VOA: special.2009.07.23

The authors of the study say it was the first to compare police and hospital data and that its four year time span was longer than other CCTV evaluations.

BBC: The study was the first to compare police and hospital data

The justices ruled that there had been no change of use within the section of the Town and Country Planning Act, which imposes a four-year time limit for taking enforcement action against breaches of planning control.

BBC: Couple lose fight to live in Hertfordshire luxury barn

Then the Jamaican says he will turn his attention to the beautiful game in about four year's time.

BBC: Top sprinter Usain Bolt wants to be a footballer