lower back [ˈlaʊɚ bæk]

例句:

• I felt a sharp pain in my lower back.
  我感觉到后腰一阵剧痛。
  
• The two poses relax the hips and lower back.
  来自WSJ
• It numbs the body from the lower back downwards.
  来自BBC
• Use a small cushion to help give support to the lower back.
  用一个小靠垫帮助支撑腰部。
  
• I've got a nagging pain in my lower back.
  我后背下方老是疼.
  
• I put it behind my lower back while driving.
  来自SA