Don't Feel Guilty for Problems that are not of your Own Making: Oneof the most difficult aspects of work is dealing with customercomplaints.

不要因为集体失误而产生负罪感：单位中最困难的工作之一应该是处理客户的投诉。

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Also, he notes, the most difficult problems are always the most expensive to solve, which makes challenging projects less attractive if they’re judged by their “bang-for-the-buck” efficiency.

另外，他也指出，最大的困难就是按照“货真价实”的标准判断，最费钱的项目就变得不那么令人心动了。

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This new title in the World problems series demystifies these difficult problems once and for all by showing even the most math-phobic readers simple, step-by-step tips and techniques.

这在世界一系列问题的新标题神秘面纱这些难题，一劳永逸地通过显示即使是最数学恐惧症读者简单，一步一步的技巧和技术。

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It is an exciting moment for Yemen, as the Yemeni people come together to resolve some of the most difficult problems that have held their country back, write a new constitution, and build a new future.

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