The tendons and muscles alsoprovide a force to move the bones relative to each other.

肌腱和肌肉也提供骨头向相对的方向运动的力量。

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Seeing what we get from our habits helps us understand them at a deeper level — to know it in our bones so we don't have to force ourselves to hold back or restrain ourselves from behavior.

明白我们如何养成习惯惯可以帮助我们从更深的层次去了解它们——让我们从骨子里去明白，那我们就不需要再强逼自己去憋住或是去遏止自己的行为。

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Calculations based on the animal's jaw bones suggest it could have bitten into its prey with a force of 150 kilonewtons, or four times the force thought to be exerted by the jaws of a T. rex.

依据该动物的颌骨计算表明，它能以15万牛顿的力度把猎物咬伤，咀嚼力度是霸王龙的四倍。

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Last year, the U.S. Preventive Services Task Force recommended people age 65 or older who are considered at risk for falling and potentially breaking bones exercise and take a vitamin D supplement.

WSJ: Vitamin D and Calcium Supplements May Not Stop Fractures