劍橋詞典Cold-blooded animals can only control their body heat by taking in heat from the outside or by being very active . （動物）冷血的 Snakes and lizards are cold-blooded animals . 蛇和蜥蜴都是冷血動物。 比較warm-blooded behaving in a very cruel way with no sympathy for other people 冷酷無情的，殘忍的 a cold-blooded murder 殘忍的謀殺 返回 cold-blooded