Efforts for alliance lasting about 30 years could be decided into three periods sequentially, including Bismarck Period, the New Course Period and the World Policy Period.

本文将英德近30年的结盟活动分为三个阶段：俾斯麦时代的英德结盟活动，“新路线”时期的英德结盟活动和“世界政策”时期的英德结盟活动。

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By 2012, this period of chastisement will likely have run its course, and future-mindedness will be back in vogue, for better or worse.

到2012年，这一时期的惩罚可能会走到尽头，无论好坏，未来观念都将重新流行起来。

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I see this as a course that's an introduction to the literature of a period, to modern poetry.

我认为这是一门关于某个时期的文学和现代诗歌的入门课程。

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I see this as a course that's an introduction to the literature of a period, to modern poetry.

我觉得，这只是一门引导性课程,引导大家关注某一时期的文学创作和现代诗歌。

耶鲁公开课 - 现代诗歌课程节选

During the same period when I was first teaching this course, a veritable six-foot shelf of diatribes against literary theory was being written in the public sphere.

我一开始教这门课的时候，文学理论遭到了,公开地谩骂。

耶鲁公开课 - 文学理论导论课程节选

And then, of course, there's lots of stuff that doesn't have anything to do with the Mycenaean period.

因此也有很多东西,和迈锡尼文明时期无关

耶鲁公开课 - 古希腊历史简介课程节选

Indeed, she gave herself a crash course in period style after being enlisted to give tours of the property to VIP visitors including Paloma Picasso and busloads of Japanese vacationers.

WSJ: Kathryn M. Ireland on La Rocca Pisana's Dining Room

Moreover, as the chart shows, the rate of change has speeded up over the course of that period. (The sudden fall-off at the end is caused because the linkage-disequilibrium method cannot easily detect very recent mutations, rather than by a sudden reduction in the rate of evolution.) The researchers put this acceleration down to two things.

ECONOMIST: Human evolution

Of course, the current period doesn't seem comparable to that euphoric time.

WSJ: Dow Records Usually Spur More Buying