| 单词 | 泥中 |
| 释义 | 〔nemertean〕Any of several velvety, usually brightly colored worms of the phylum Nemertina (or Nemertea) that have a flat, unsegmented body with an extensible proboscis and live in the sea or in the mud of the intertidal zone. Also called ribbon worm 纽形动物：扁形动物门的一个纲，具有柔软身体、常常是鲜艳颜色的蠕虫，无体腔、不分节、可收缩，生活在海中或潮湿地带的泥中 也作 ribbon worm〔mussel〕Any of several freshwater bivalve mollusks of the generaAnodonta and Unio, found in the central United States, that burrow in the sand or mud of lakes and streams. 淡水蚌：发现于美国中部的无齿贝属 和 珠蚌属 几种淡水双壳软体动物的一种，在湖和河中的沙中或泥中挖洞 |
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