1. | 脊柱;脊椎the row of small bones that are connected together down the middle of the back |
2. | (植物的)刺;(动物的)刺毛any of the sharp pointed parts like needles on some plants and animals |
Porcupines use their spines to protect themselves. 豪猪用身上的刺毛来自卫。 |
3. | 书脊the narrow part of the cover of a book that the pages are joined to |