这些活动可以帮助血液流通到你的后背促进愈合，也可以增强你的腹部和背部的肌肉。
Such aerobic activities can help blood flow to your back and promote healing. They also strengthen muscles in your stomach and back.
这些活动可以帮助血液流通到你的后背促进愈合，也可以增强你的腹部和背部的肌肉。
Such aerobic activities can help blood flow to your back and promote healing. They also strengthen muscles in your stomach and back.
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