释义 |
软体动物ruǎntǐ-dòngwù无脊椎动物的一门,体柔软,没有环节,两侧对称,足是肉质,多数具有钙质的硬壳,生活范围很广,水中和陆地上都有,如蚌、螺、蜗牛、乌贼等。{mollusk; phylum of invertebrates such as clams, spiral shells, snails and cuttlefish, with a symmetrical soft body without segments, oft. in a calcareous shell, fleshy feet, and a wide range of habitat in water and on land} |