形容词 cold-blooded:

1. without compunction or human feeling

2. having cold blood (in animals whose body temperature is not internally regulated)

coldadj.冷的；寒冷的；冷酷的；冷淡的；冷静的n.寒冷；感冒；伤风adv.完全地；彻底地Coldstop联邦伤风素(含盐酸曲普利啶、伪麻黄碱、对乙酰氨基酚等)

1. The prisoners were shot in cold blood.
   犯人们被残酷地枪杀了。
2. She did not say it on the spur of the moment. She said it in cold blood.
   她并不是脱口而出，而是经过考虑以后才说的。