| 单词 | 在海底 |
| 释义 | 〔sponge〕Any of numerous aquatic, chiefly marine invertebrate animals of the phylum Porifera, characteristically having a porous skeleton composed of fibrous material or siliceous or calcareous spicules and often forming irregularly shaped colonies attached to an underwater surface.海绵：一种水栖的海绵纲的无脊椎海生动物，其特征是具有同纤维物质或硅质或钙的针状物组成的多骨架，通常形成不规则的簇丛，贴在海底地面〔deposit〕layers of sediment that were deposited on the ocean floor; glaciers that deposited their debris as they melted.沉积在海底的层层沉淀物；融化时留下残骸的冰山〔guyot〕A flat-topped submarine mountain.平顶海山：一种在海底的平顶山岭〔crinoid〕Any of various echinoderms of the class Crinoidea, including the sea lilies and feather stars, that are characterized by a cup-shaped body, feathery radiating arms, and either a stalk or clawlike structure with which they are able to attach to a surface.海百合纲动物：任一种属于海百合纲的棘皮动物，包括有海百合以及毛头星等，其特征是身体成杯状，有羽状外延腕和可以吸附在海底的肉柄或爪状结构〔spat〕An oyster or similar bivalve mollusk in the larval stage, especially when it settles to the bottom and begins to develop a shell.幼牡蛎：幼虫时期的牡蛎或类似双壳类软体动物，尤指在海底开始开壳的 |
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