primitive predaceous North American fish covered with hard scales and having long jaws with needlelike teeth
elongate European surface-dwelling predacious fishes with long toothed jaws; abundant in coastal waters
造句
用作名詞(n.)
Unlike most of its close relatives, the alligator gar can breathe air and survive above water for up to two hours. 跟它的大部分近親不同，鱷雀鱔能呼吸空氣，能在離開水的情況下存活長達兩小時。