A crustacean of the order Decapoda, such as a crab, lobster, or shrimp, characteristically having ten legs, each joined to a segment of the thorax.是什么意思_A crustacean of the order Decapoda, such as a crab, lobster, or shrimp, characteristically having ten legs, each joined to a segment of the thorax.在线翻译_英语_读音_用法_例句