1. drop 下降 temperature drop 降温As cold waves arrived, the temperature dropped last night.冷空气到了，昨晚就降温了。cold wave 冷空气heat wave 热浪／热空气The price dropped.降价了。It's freaking cold today. The temperature dropped dramatically last night.今天真是冻死了。昨晚温度骤降。2. fall 降Before long, the temperature fell.不久，温度下降了／降温了。The interest rate is falling quickly.利率在快速下降。3. plummet 坠入／急降=drop dramatically The diver plummeted into the pool.跳水运动员调入泳池。The temperature plummeted. You should put on more clothes.温度骤降。你要多穿点衣服。
