spines

例句:

• Porcupines use their spines to protect themselves.
  豪猪用身上的刺毛来自卫。
  
• The cactus has spines.
  仙人掌有刺.
  
• Spines - this expression has been used by various writers with considerable latitude.
  刺,许多作者把这个词用在相当广泛的含义上.
  
• Several surgeon fishes appear to have envenomed spines.
  来自Nature
• It has sent shivers down the spines of even large companies.
  来自WSJ
• We heard about people with crumbling spines, heart problems and cancer.
  来自BBC