| 单词 | porpoise |
| 释义 | porpoise n. any of various small toothed whales of the family Phocaenidae, esp. of the genus Phocaena, with a low triangular dorsal fin and a blunt rounded snout. Etymology: ME porpays etc. f. OF po(u)rpois etc. ult. f. L porcus pig + piscis fish |
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