Other teen health experts called it a powerful, novel way to evaluate a tragic social problem.

其他青少年健康专家称其为一个用于评价悲剧性社会问题有用而前所未有的办法。

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The problem is not in readership decline, it seems, but in teen readership decline.

问题并不在于在读者的下降，似乎，但在青少年读者的下降。

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Drinking sodas instead of milk can be a problem, especially during the teen years when rapid bone growth occurs.

喝苏打水替代牛奶可能是一个问题，尤其是在骨骼迅速生长的青少年时期。

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Committee members realized they'd spent a lot of time wrestling with the problem of teen smoking without talking to the real experts.

CNN: No Easy Answer To Teen Smoking