This problem seemed to be complex in the first instance, but it could be easily solved.

这个问题乍一看似乎很复杂，但其实很容易解决。

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This is the sort of problem that was first solved by Electronic Data Interchange (EDI) systems that used secured networks to operate.

这种问题首先由使用安全网路进行作业的“电子资料交换(Electronic Data Interchange (EDI))”系统解决。

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LONG BEACH, Calif. - Astronomers may have solved a cosmic chicken-and-the-egg problem: Which came first - galaxies or the supermassive black holes in their cores?

加州长滩市—天文学家也许已经解决了宇宙的鸡与蛋问题：星系和星系核心的特大质量黑洞哪个最先出现？

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And the first thing you do is ask is it an instance of some problem that other people have already solved?

而且你以前从没碰过这个问题,你首先要做的一件事就是问问自己,这是不是一个别人已经解决了的问题？

麻省理工公开课 - 计算机科学及编程导论课程节选

Dr Cao's group first solved the problem of using Anderson localisation to create a true laser last year, but the resulting devices were a millimetre across.

ECONOMIST: Microlasers

The government solved the first problem by convincing judges, including the European Court of Human Rights, that a Memorandum of Understanding from Jordan guaranteed Abu Qatada would be treated properly.

BBC: Analysis: A very difficult decision on Abu Qatada

The latest breakthrough, according to the paper's authors, is the first time that online gamers have solved a longstanding scientific problem.

BBC: Online game Foldit helps anti-Aids drug quest