然而，没有直接证据表明睡眠质量不高会增加患普通感冒的几率。

However, there has previously been little direct evidence that poor sleep increases susceptibility to the common cold.

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然而，我们都知道大多数软件开发仍旧面临挑战，许多项目是滞后的、超过预算并造成不高质量的软件。

However, we all know that most software development is still very challenging, with many projects that are late, over budget, and responsible for software that is not of high quality.

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然而价钱并不高，只是反映了运动员的真实价值，和体育的真实价值。

Yet these huge sums merely reflect the true value of players, and of sport itself.

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