1 ( cool down) become colder变凉ADVERB | VERB + COOLADVERBa little, slightly, etc.略微／稍稍冷却completely完全冷却quickly, rapidly迅速冷却◆Dry soil cools rapidly when air temperatures fall.空气温度下降时，干燥的土壤很快冷却。gradually, slowly逐渐／慢慢冷却◆Her tea was slowly cooling in front of her.她面前的茶慢慢变凉了。VERB + COOLallow sth to, let sth让⋯凉下来◆Allow the cake to cool thoroughly before removing it from the tin.等蛋糕凉透了再从烤模中取出。