Plesiosaur

[pli:siәsɒ:]

解释:

(noun.) extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous.

丹尼斯编辑--From WordNet

解释:

(n.) One of the Plesiosauria.

整理:莱克格斯