The village encountered a new problem two decades later as the environment became heavily polluted by chemical plants and mine refineries built in 1990s.

20年后，这个村庄遇到了一个新的问题，因为20世纪90年代建成的化工厂和炼油厂严重污染了环境。

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At this point, you can "fix" this problem two ways.

这种情况下，你有两个办法解决这个问题。

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Problem Two days into a trip, your eye turns red, itchy, and starts discharging pus.

症状两日的旅程之后，您的眼睛变红，发痒，并且有脓液渗出。

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Researchers led by George Malone at the University of Delaware began dealing with the problem in two thousand.

VOA: special.2009.09.08

Okay so exchange numbers; okay good half of that problem is gone now we have just these two left.

好，交换数字,好，问题解决一半了,只剩你们两个了。

哈佛公开课 - 计算机科学课程节选

And Milton uses the language of these two parables to get at this problem that has resonances in every conceivable sphere.

弥尔顿用这两则寓言来解释,可以想象出的与此有共鸣的问题。

耶鲁公开课 - 弥尔顿课程节选

Problem two solved: a fairly simple silicone shower head evenly distributes coffee over the grounds.

FORBES: Hands-On: Bodum's 'Pour-Over' Coffee Maker

When Childress notified Perry County of the potential problem two weeks ago, Vikings Coach Michael Harrison removed the Belasics from the team.

FORBES: Mom's Facebook Post Costs High School Football Team Three Wins

Our founding fathers solved that problem two hundred and twenty years ago.

CNN: [answer]