ark shell

英 美
  • 舟贝
  • ark n.方舟;避难所
  • shell n.壳;炮弹;[计]外壳程序v.脱落;去壳;拾贝壳;炮轰
Noun:
  1. marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface