sea urchins

英 美
  • 海胆类
  • sea n.海;海洋
名词 sea urchin:
  1. shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells

    1. A fine, sharp projection, as a spine of a sea urchin or a crystal.
      针状物精细尖锐的突出物,如海胆的脊椎骨或水晶球