cold-blooded

形容词 cold-blooded:

1. without compunction or human feeling
   同义词：cold, inhuman, insensate
2. having cold blood (in animals whose body temperature is not internally regulated)

1. Reptiles are cold-blooded.
   爬行动物是冷血的。

cold-blood.ed

adj.（形容词）

Lacking feeling or emotion:
无情的：缺乏情感或热情的：
例句：
a cold-blooded killer.
一个冷血杀手

Executed without feeling or emotion:
残酷的：毫无感情地进行某项活动：
例句：
a cold-blooded crime; a cold-blooded performance of the concerto.
残酷的罪行；毫无激情的协奏曲演奏会

Ectothermic.
变温动物的，冷血的

【引伸】
cold.-blood.edly
adv.（副词）
cold.-blood.edness
n.（名词）