Any of numerous usually small spiny-finned fishes of the family Gobiidae, having the pelvic fins united to form a suction disk.是什么意思_Any of numerous usually small spiny-finned fishes of the family Gobiidae, having the pelvic fins united to form a suction disk.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句