| 单词 | 内壳 |
| 释义 | 〔spirula〕A small cephalopod mollusk of the genusSpirula, having a spirally coiled, partitioned internal shell. 旋壳乌贼：一种旋壳乌贼 属的小型头足纲软体动物，具有螺旋盘绕的分裂内壳 〔belemnite〕A cone-shaped, fossilized internal shell of any of an extinct genus of cephalopods related to the cuttlefish.箭石：由灭绝的与乌贼有血亲关系的头足纲动物的内壳形成的尖锥状化石〔cuttlebone〕The calcareous internal shell of a cuttlefish, used as a dietary supplement for cage birds or ground into powder for use as a polishing agent.乌贼骨：乌贼的钙质内壳，作为笼中鸟的饮食补充物或把它碾碎成粉用作上光剂〔squid〕Any of various marine cephalopod mollusks of the genusLoligo and related genera, having a usually elongated body, ten arms surrounding the mouth, a vestigial internal shell, and a pair of triangular or rounded fins. 乌贼，墨鱼：一种枪乌贼 属海洋头足软体动物及有亲缘关系的种属，身体通常细长，十条触手围着嘴边，有一个退化的内壳和一对三角形或者圆形的鳍 〔pen〕The chitinous internal shell of a squid.羽状壳：乌贼的壳质的内壳 |
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