thunniform ichthyosaurs 衍化的鲔行式鱼龙类
以上来源于: WordNet
N any extinct marine Mesozoic reptile of the order Ichthyosauria, which had a porpoise-like body with dorsal and tail fins and paddle-like limbs 鱼龙 → see also plesiosaur
Ichthyosaurs were reptilian contemporaries of the dinosaurs, with fins and streamlined bodies.
鱼龙是与恐龙同时代的爬行动物，它有鳍和流线型的身体。
Using four paddle-like limbs to propel its bulky body through the water, the pliosaur made easy work of passing prey such as dolphin-like ichthyosaurs.
上龙用四根桨状的四肢推动它庞大的身体在水里游来游去，轻而易举地就能掠食形似海豚的鱼龙。
Ichthyosaurs were like fish, but they were reptiles.
鱼龙象鱼，但它们是爬行动物。
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