但背部比起其他人来更加容易感到疲倦，易患心脏病。
Their upperback tires more easily than other parts of their bodies.
相比起其他人的手，用你自己的手能缓解多很多的疼痛感。
Pain is reduced far more when it's your own hand, not anyone else's. (no jokes, please.)
尤其是黑人，比起其他人口学群体来，他们一直认为存在更多的社会冲突。
Blacks, in particular, consistently see more social conflict than do other demographic groups.
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