They think people who change their jobs frequently are feckless. They believe that the only way to success is to stick to one job, for constant practice in a professional field helps make an expert.

许多人喜欢一生中做一件工作，他们认为经常换工作的人软弱无能，他们相信成功的唯一途径就是坚持一项工作，因为在一个专业领域里不断的实践有助于专家的形成。

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Be sure that you are an expert on all the different duties and requirements of the job.

确定你是个专家，了解空缺工作的不同职责和要求。

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Become an expert in the skills and tools necessary to do your job.

精通你工作时必需的技术和工具。

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Even though these organizations have their own security experts they feel an outside expert can do a better job of justifying security investments and frankly, frightening their stakeholders into taking security seriously.

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"Sandy Liu was doing an acceptable job, but he was part of the old establishment, " says aviation expert Eckes.

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"It's a good thing everybody is allowed to have their say, but the FDA has to do its job, " said heart-disease expert Sanjay Kaul, who served as an FDA adviser and voted against lorcaserin.

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