a.

1. 冷血的
   Snakes are cold-blooded.

   蛇是冷血動物。

2. 【口】怕冷的
   The old couple was cold-blooded and kept their house terribly hot.

   那對老夫婦很怕冷，所以把房間燒得熱得要命。

3. 冷酷的，無情的
   The cold-blooded murder shocked the town.

   殘忍的謀殺案使全城的人震驚。

4. 不動感情的，冷靜的
   He gave a cold-blooded account of the accident.

   他冷靜地敘述了這一事故。

adj.

1. denoting animals whose body temperature varies with that of the environment (e.g. reptiles and fish); poikilothermic.
2. without emotion; deliberately cruel.