reptile

蛇、蜥蜴和鳄鱼都属于爬行动物。

Snakes, lizards, and crocodiles are all types of ___reptile.

爬行动物是一种外温脊椎动物，通常有鳞状皮肤并产卵。

A ___reptile is an ectothermic vertebrate that typically has scaly skin and lays eggs.

那个政客是个冷血的爬虫，从不关心普通人的疾苦。

That politician is a cold-blooded ___reptile who never cares about ordinary people's struggles.