plesiosaur

详细解释:n. 蛇颈龙

词型变化：

异体字:plesiosaurus名词复数:plesiosaurs

英语解释：

名词 plesiosaur:

extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous同义词：plesiosaurus