| 单词 | Risso's dolphin | 
| 释义 | Ris·so's dolphin   (rĭsōz) n.  A marine mammal (Grampus griseus) having a bulbous head, a tall curved dorsal fin, and a gray body with white streaks or scars. Also called  grampus. [After Antoine  Risso (1777-1845), French naturalist born in Nice.] | 
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