Objective: to observe the influence of the exercise intervention on university teachers psychological sub-health state.

目的：观察运动干预对高校教师心理亚健康状态的影响。

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Besides, he learned the hard way more than a decade ago that intervention in the foreign-exchange markets is generally a fruitless exercise.

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One is seen as a single, modest intervention, while the other is a continuing exercise of significant control over individual conduct.

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He said while it was important to "exercise a degree of restraint" with state intervention, there were cases where the state must intervene.

BBC: child