A hard mental work, if not often activities limbs, that is a very painful thing.

一个埋头脑力劳动的人，如果不经常活动四肢，那是一件极其痛苦的事情。

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But the faster you go, the more you enter into the mental state of "hard work."

但是你越是速度，越容易陷入“繁重工作”的精神状态。

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The researchers speculate that low levels of social support may cause mental stress, which is hard on the heart.

研究人员推测称，社会支持程度较低可能会导致精神压力，而这不利于心脏健康。

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But the fact that elected officials can simply declare that video games cause mental disorders without hard evidence is rather terrifying.

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Graham reinforced the importance of hard work, discipline and the appropriate mental approach to the game of baseball.

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Are you going to recommend that seeking to extract their pound of flesh from these parties is a better approach to strengthening their mental health than doing the hard work of examining their own attitudes and behaviors and empowering themselves to make the needed changes?

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