事实上有不少原因，而最明显的原因是，这是摄影师超级超级喜欢拍的一个动作。

There's actually a few reasons, but the most obvious is that it's a pose photographers really, really like to capture.

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研究小组发现，这些人的骨骼质量几乎没有明显的增强，而两处最易骨折的部位——脊骨下部和大腿骨上部的骨骼质量也未得到改善。

The team found few significant increases in bone mass and none in the two bones which are most vulnerable to fracture - the lower spine and upper part of the thigh.

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但是，有一项费用经常被大部分的病人忽视，而奇怪的是，这项其实非常的明显。布莱·克斯通医生说：“最昂贵的费用就是如果手术失败了。”

But the expense that most frequently blindsides patients is, oddly, perhaps the most obvious. "the most expensive thing is if the surgery is unsuccessful," Dr. Blackstone said.

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