This problem has been solved through two-step.

本文分两步解决这个问题。

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Fortunately, this problem has been solved before.

幸运的是，这个问题早已经解决了。

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However this problem has been solved, partially with alloying.

但这一问题用合金的办法部分地解决了。

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And this is a problem that has been addressed: solved even.

FORBES: Arnold Kling's New Model for Education Already Exists

And I think what he was sort of confused by, and I was too, was this sort of feeling in the movie industry that the problem of race has been solved, at least in the movies already, I think because movies don't want to deal with it anymore, partially because it's one of those things they think automatically spells a lack of audience interest.

NPR: 'Crash' Expands Cinema's Exploration of Race