The resulting rate of escalation would place the third attack approximately 2 months (66 days) after the second, with the fourth an estimated 52 days after that.

逐步上升的发生概率将大致得出第三次袭击会在第二次袭击的2个月（66天）后发生，而约52天后会发动第四次袭击。

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The May Fourth Movement, which took place on May 4, 1919, was an anti-imperialist, anti-feudal, political and cultural movement.

五四运动是1919年5月4日发生的一场反帝反封建的政治文化运动。

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How does the fourth estate simultaneously serve an audience that is both consumer and citizen?

新闻界何以同时服务于消费者和公民？

《柯林斯英汉双解大词典》

"We have an economy that was growing at almost six percent in the fourth quarter of last year the most rapid rate in six years.

VOA: standard.2010.02.07

So with that said, perhaps just to add to that, the fourth passage: "Beauty is the form of the purposiveness of an object so far as it is perceived in it without any representation of a purpose."

所以据上所述，啊，再加一点，现在看，第四篇文章：，“美是事物存在的目的,尽管这种合目的性并不是显而易见的，你可能要问了“

耶鲁公开课 - 文学理论导论课程节选

She's an actual fourth year, not me, the returning third year.

她是真的四年级，不像我，回来再上课上到第三年。

我们是校园情侣 - SpeakingMax英语口语达人

Mr. Teksler's testimony marked the fourth time an Apple employee was called as a witness.

WSJ: Apple Speeds Through Final Witnesses in Patent Case

The teams would head into the fourth with an 81-81 tie.

WSJ: Pacers End Knicks' Season

The hotel location near the French Quarter in New Orleans was good for our personal safety (we could operate out of the fourth floor in an interior hallway during the worst of it), but parking the satellite truck would be a problem.

CNN: Miles O'Brien's hurricane blog