Barefoot walking ensures proper alignment of the knee joint, hip joint and lower back.

光脚走路能够保证我们的膝关节、髋关节和下背部得到有效的调节。

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But wearing high heels can cause health problems ranging from bunions to plantar fasciitis to knee and lower back pain.

但是，穿高跟鞋会导致一些健康问题，包括脚趾囊肿、足底筋膜炎、膝盖疼痛、腰部疼痛。

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Lilly is seeking FDA approval for Cymbalta as a treatment for chronic pain conditions such as knee pain caused by osteoarthritis and lower back pain.

礼来公司正在向FDA申请将欣百达适应症扩展到慢性疼痛，例如因关节炎导致的膝盖疼痛和腰疼。

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So just-- and we will come back to this and flush out some of these lower level details.

那么，我们还是回到这里，略去一些,没用的细节。

哈佛公开课 - 计算机科学课程节选

So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.

如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。

麻省理工公开课 - 化学原理课程节选

If I then put it back into its original condition, lower the heat say, temperature back to body temperature and reduce the pH down to seven again, the molecules will re-nature.

假如我把烧杯的温度恢复到初始状态,降低温度,温度降低到体温,将pH值降低到七,这些分子会复性

耶鲁公开课 - 生物医学工程探索课程节选

"Physical therapy made me realize that I had neglected keeping my core and lower back strong, " he says.

WSJ: Run to Work, Run a Hotel

The team studied 18 weight-related medical conditions, including cardiac disease, type 2 diabetes, cancer, stroke and lower back pain.

BBC: Overweight man measuring his waist

Trawling around the shops can cause headaches and joint pain, while gardening and DIY can lead to joint and lower back aches.

BBC: Bank Holiday health risk