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单词 pelvic fin
释义
Pelvic Fin
nnoun.animaleither of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
Synset:ventral fin
Hypernyms:fin
Inherited Hypernyms:pelvic finfinextremityexternal body partbody partpartthingphysical entityentity
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