冷血 | lěng xuè | cold-blood / cold-blooded (animal) | |
冷血动物 | lěng xuè dòng wù | cold-blooded animal / fig. cold-hearted person | |
变温动物 | biàn wēn dòng wù | poikilothermal (cold-blooded) animal | |
杀人不眨眼 | shā rén bù zhǎ yǎn | to murder without blinking an eye (idiom) / ruthless / cold-blooded |