1. 凉的;凉爽的;温度不高的
Something that is cool has a temperature which is low but not very low.
e.g. I felt a current of cool air...
我感觉到一阵凉风。
e.g. The water was slightly cooler than a child's bath...
这水比小孩的洗澡水稍微凉一些。
1. cool it : 放松下来；
2. play it cool : 抑制住感情, 做出冷静的样子；
3. lose one's cool : 失去镇静, 失去自制力；
4. as cool as a cucumber : 极为冷静；
5. cool down : 变凉；
6. keep one's cool : 保持镇静, 保持自制力；