而m2向下加速，因此会减少重量。

M2 is being accelerated down, so it must have lost weight.

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脱发 随着年龄增长，男性和女性的头发都会逐渐减少，而吸烟则会加速这一过程。

smoking can accelerate this process. Some studies even suggest

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之后因为向下加速，重量减少。

You see, it has lost weight, because it accelerated down.

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速度增加的加速度为正加速度，速度减少的加速度为负加速度。

The acceleration is positive if the speed is increased, negative if speed is decreased.

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如果不想让自己的肌肉减少，那就每周进行三次可以试你的新陈代谢加速的强度训练。

Fight the loss by adding three sessions of metabolism-revving strength training to your weekly routine.

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如果不想让自己的肌肉减少，那就每周进行三次可以试你的新陈代谢加速的强度训练。

Fight the loss by adding three sessions of metabolism-revving strength training to your weekly routine.

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