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关注：1
2013-05-23 12:21
求翻译：To begin with, people do different kinds of jobs featuring different labor intensity and so the time needed to refresh their physical condition varies. For example, blue collar workers may work longer hours before they get tired physically, while white collar workers such as doctors and teachers are more mentally stres是什么意思？ 待解决
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To begin with, people do different kinds of jobs featuring different labor intensity and so the time needed to refresh their physical condition varies. For example, blue collar workers may work longer hours before they get tired physically, while white collar workers such as doctors and teachers are more mentally stres
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