what is a reptile ?
n.（名词）
1. Any of various cold-blooded, usually egg-laying vertebrates of the class Reptilia, such as a snake, lizard, crocodile, turtle, or dinosaur, having an external covering of scales or horny plates and breathing by means of lungs.
爬行动物：一种爬行纲的冷血的、通常是卵生的脊椎动物，例如蛇、晰蜴、鳄鱼、乌龟或恐龙，具有鳞状外皮或角质板块结构并用肺进行呼吸
2. A person regarded as despicable or treacherous.
卑鄙的人：被认为是卑鄙的或奸诈的人