| 单词 | 动土 |
| 释义 | 〔earthworm〕Any of various terrestrial annelid worms of the class Oligochaeta, especially those of the family Lumbricidae, that burrow into and help aerate and enrich soil.蚯蚓：任一种土中生活的环节虫类，属于寡毛纲，尤指正蚓属的动物，它的挖穴动土有助于疏松和肥沃土壤 |
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