I've done that over the course of four years in high school.
我已经在高中的时候重复这一过程长达四年的时间了。
In the course of the past ten years, great changes have taken place.
在过去的十年里发生了巨大的变化。
So perfect culture in the course of a bloody five thousand spent hundreds of years.
五千年完美的文化就这样在血雨腥风中度过了几百年。
Of course, a lot has been accomplished in the 10 years, since our engagement there.
当然，由于我们的参与，十年之中已经做到了许多。
Ten years is just a very brief moment in the long course of human history.
在人类历史的长河中，10年只是短暂的瞬间。
Ten years is just a very brief moment in the long course of human history.
在人类历史的长河中，10年只是短暂的瞬间。
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