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to cool oneself; to cool off; to enjoy the cool air
暑いので木陰で涼むことにしましょう。
It's hot, so let's cool off in the shade of a tree.
夕方になると外に出て涼む人が増える。
In the evening, more people go outside to cool off.
扇風機の前で涼みながら本を読んでいた。
I was reading a book while cooling off in front of the fan.