| 单词 | 海胆 |
| 释义 | 〔echinoid〕An echinoderm of the class Echinoidea, which includes the sand dollars and sea urchins.海胆：一种属于海胆纲的棘皮动物，包括沙钱和海胆〔echinoderm〕Any of numerous radially symmetrical marine invertebrates of the phylum Echinodermata, which includes the starfishes, sea urchins, and sea cucumbers, having an internal calcareous skeleton and often covered with spines.棘皮动物：任一种属于棘皮动物门的许多呈辐射对称状的海生无脊椎动物，包括海盘车、海胆和海参，内部骨架含钙，常覆盖有棘针〔echinus〕from Greek ekhinos [sea urchin, hedgehog] 源自 希腊语 ekhinos [海胆，刺猬] 〔echinus〕Latin echīnus [sea urchin] 拉丁语 echīnus [海胆] 〔echinoderm〕Any of numerous radially symmetrical marine invertebrates of the phylum Echinodermata, which includes the starfishes, sea urchins, and sea cucumbers, having an internal calcareous skeleton and often covered with spines.棘皮动物：棘皮动物门中各种的放射对称状海洋无脊椎动物，具有内骨架且通常有脊包覆外表，包括海星、海胆、海参等〔echinus〕A sea urchin of the genusEchinus. 海胆：一种海胆 属的海胆 |
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