| 释义 |
蠕形动物rúxíng dòngwù无脊椎动物的一大类,构造比腔肠动物复杂,身体长形,左右对称,质柔软,没有骨骼,没有脚,如绦虫、蛔虫等。{worm; feetless invertebrates of the phylum Vermes, such as cestode and roundworm, having a soft and symmetrical elongated body, and more complicated in structure than coelenterates} |