For example, knee injuries sometimes occur because running strengthens the back of your legs more than the front of your legs.

比如说膝盖损伤是因为跑步加强的后退的锻炼而忽略了前腿。

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In the foreground, sits the car-sized lander that sent back images for more than 90 minutes before running out of battery power.

前景是小汽车一般大的着陆器，在电池用完之前它发回了超过90分钟的图片。

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Running has never failed to give me great end results, and that's why I keep coming back for more!

跑步一直带给我极佳的结果，从未让我失望过，这也是我为什么坚持跑下去的原因！

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Denver Broncos quarterback Peyton Manning shook off his neck brace and passed for more than 4, 000 yards, Minnesota running back Adrian Peterson jumped off the operating table and produced the second-highest rushing total in history, and Ravens linebacker Ray Lewis returned to the field just 12 weeks after tearing his triceps.

WSJ: NFL: The Year Everything Changed

For Mahlum and others, Back On My Feet is more than a running club.

CNN: Runner gets homeless on right track