earthworm
/ˈɜːθwɜːm/noun
1- a burrowing annelid worm that lives in the soil. Earthworms play an important role in aerating and draining the soil and in burying organic matter.蚯蚓。
1.1
- Family Lumbricidae, class Oligochaeta: Lumbricus, Allolobophora, and other genera.正蚓科, 寡毛纲：蚯蚓属、异唇蚓属及其他属。