This problem happened before and we know how to solve.

之前发生过此问题，我们也知道如何解决。

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Taking academy as research narrowly and attaching less and less importance to teaching, which is similar to the problem happened in USA after the World War II, arose in China.

目前我国高校出现了和美国二战后教育界相似的问题，即将学术狭隘地等同于科学研究，教学越来越不被重视。

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High-pressure feedwater pump is one of the important auxiliary equipment of power unit. Its vibration problem happened frequently has seriously influenced the safety running of power unit.

高压给水泵组是发电机组的重要辅机设备，振动引起故障的发生率高，严重影响机组的安全运行。

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Now in fairness, that particular problem kind of happened because so many companies ended up running so much code for many more years than the programmers actually thought they would be running it, but the idea is still the same.

公平起见，那个问题有时会发生,因为实际上，很多企业在这么多年里运行了,比程序员多得多的代码,虽然他们将运行它，但那个构想还是一样的。

哈佛公开课 - 计算机科学课程节选

And this is a little different from what happened ten or so years ago, but the so-called Y2K problem was essentially the result of programmers not really having the foresight to realize, "Maybe we shouldn't use so few bits or so few digits to represent a year because eventually this will be a problem."

这个跟10年前发生的事情有点不一样,那个所谓的“Y2K“问题,本质上的结果是,程序员没有真实地预见和认识到，“可能我们没必要用到这些位数或数字,来表示一年，但是最终这个将会,是个问题“

哈佛公开课 - 计算机科学课程节选

The NTSB said it was trying to determine which problem happened first and caused the other.

CNN: SHARE THIS

The biggest advance in actually lessening the problem happened in the 1950s with cataracts.

BBC: In Touch marks 50th anniversary

It is a big problem because part of what happened over the last several years is, is that we built more homes than we had families to absorb them.

WHITEHOUSE: Discussing the Economy in Albuquerque