A fish of the family Polyodontidae, having a long paddle-shaped snout, especially Polyodon spathula of the Mississippi River basin.是什么意思_A fish of the family Polyodontidae, having a long paddle-shaped snout, especially Polyodon spathula of the Mississippi River basin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句