also cold blooded; 1590s, of persons, "without emotion, unfeeling;" of actions, from 1828. The phrase refers to the old notion that blood temperature rose with excitement. In the literal sense, of reptiles, etc., from c. 1600. From cold (adj.) + blood (n.). Related: Cold-bloodedly; cold-bloodedness.
实用例句
1. The cold, misty air felt wonderful on his face.
雾蒙蒙，寒冷的空气使他脸上感觉很舒爽。
来自柯林斯例句
2. Basal metabolism is much lower for creatures in cold water.
冷水中生物的基础代谢速度要低很多。
来自柯林斯例句
3. Victorian houses can seem cold with their lofty ceilings and rambling rooms.
维多利亚式房屋屋顶高耸，房间布局凌乱，因此可能会显得较为阴冷。
来自柯林斯例句
4. Whenever I have a cold I get a nosebleed.
每次我感冒都会流鼻血。
来自柯林斯例句
5. A cold is an infection of the upper respiratory tract.