reverse chill

例句：

1. 1. The temperature has reversed chill in the morning.
   早晨的温度突然变冷。
2. 2.He was caught in a sudden reverse chill when he stepped out of the car.
   当他下车时，他突然被一阵寒气包围。
3. 3. The scientist noticed a sudden reverse chill in the air.
   科学家注意到空气中突然变得异常寒冷。