This means that every person enjoys a successful period during his or her life.

VOA: special.2010.05.30

Or my life would've gone better for this period of ten years, but then it would've become worse.

或者说我的生活在这十年本来可以更好，然后它会变得糟糕。

耶鲁公开课 - 死亡课程节选

Now,that has changed, for sure; but,the centralization of the French government and the domination of Paris over the life of the nation is very difficult to change, over a long period of time.

现在,情况已经发生了改变,但是法国政府的中央集权化,以及巴黎在国民生活中的支配地位,在相当时间段内,都很难得以改变

耶鲁公开课 - 1871年后的法国课程节选

He published several books during this difficult period of his life.

VOA: special.2009.06.14