Good rain plagues the summer heat, but it makes it cool. Poetry annotation

It comes from Sima Guang's Sleeping in the Rain, which means that good rain washes away the hot summer and makes you feel cool easily in the morning. (good: good. Zhuo: Er Sheng Zhu, wash. Ran Yan: Free and unfettered. With the sound of Xiao. Life is cool: it produces a cool feeling in the morning. Health: production. Xiao: Good morning. )