Though the research on the subject is thin, one estimate pegs more than half of refugees lack professional training.

虽然在这方面的研究不多，但有一项预测认为，超过半数难民没有接受过职业培训。

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Though research on the subject is still emerging, experts say that part of the perception problem may just have to do with the dynamics of change.

尽管这一研究项目仍然进行着，专家们说部分观念问题仍是影响改变的原因

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Domestic research on the subject is underway, however, with its focus largely concentrated on linguistic features and translation strategies of English news headlines.

国内这一领域的研究已有所起步，但焦点多集中在对英语新闻标题特点和翻译技巧的探讨方面。

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The research on the subject is less clear than you may think.

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The report compiles the bulk of the peer-reviewed research available on the subject, and the result is a single document that illustrates the problem, the gaps in the research, and the potential solutions.

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Fewer controls apply to research done by private companies with private money, and if the research is not on a drug or device that is federally regulated, it may be subject to no formal controls beyond the risk of liability.

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