cool /ku:l/ I.adj. 1.凉的，凉快的： a cool day 一个凉爽的日子；a cool room 一间凉快的房间 2. 冷静，沉着：have a cool head 头脑冷静 Keep cool! 要镇静! ‖II.vt.& vi. 晾，(使)凉快，(使)冷却：Let your tea cool a little before you drink it. 喝茶前先让它晾一会儿。Cool down/off 渐渐冷却；使平静：He has had time to cool down and look at what happened more objectively.他已经冷静了一段时间，能更加客观地看待所发生的事情。Cool off the carrots quickly. 将胡萝卜迅速冷却。