The problem has already been solved。
问题已解决。
Relax-you are not expected to have all the answers or to have already solved world problems.
放松点——没有人期望你能回答出所有的问题,或是解决世界上所有的难题。
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?
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