cool

a. 凉的,凉快的,酷
ad. 冷静地
n. 凉快
v. 使变凉

Even when you argue, you should try to keep cool.

即使在争辩时，你也要尽力保持冷静。

As it was a hot day she wore a cool dress.

因为天气热，她穿了一件凉快的衣服。