The chirping of frogs and cicadas is an idiom in China. Pinyin is W ā mí ng Chá n à o, which means the sound of frogs and cicadas, which makes people very tired. A poor metaphor for a comment or article. From "there was a problem on the ship when I left Beijing" to Chen. This idiom comes from the poem "From Beijing to Chenchu, there is a problem on the ship". In early summer, I entered the pine forest and listened to frogs singing and insects chirping in the moonlight. When you step into the pine forest, you can't hear the roaring pine trees. What reaches your ears is the chirping of frogs and insects in a small pond. Moonlight, like water, poured down on this vast pine forest, covering the green pine forest with a layer of gauze.