a humped back的用法和样例：
- Often this leads to a “hump back human” if expressed in present time.
- domesticated ox having a humped back and long horns and a large dewlap ;
- Important faults : Hollow or humped back.
- Shaped like a hump or an arching curve.
- A hump is caused by a deformity of the spine.
- domesticated ox having a humped back and long horns and a large dewlap; used chiefly as a draft animal in India and east Asia.