Clouds and mists
Misty clouds, a Chinese idiom, Pinyin is y ú nm í w ù zh à o, which means to describe the dark weather and gloomy atmosphere. From the sword.
The origin of Idioms
Li Kaixian of the Ming Dynasty wrote the third and seventh chapter of the story of the sword: "suddenly, the clouds are covered with mist, the wind is blowing, the leaves are falling, the mountains are shaking, the tigers are roaring, and the apes are wailing around the stream."
Idiom usage
Used as a predicate or attributive; used in writing.
Clouds and mists
Introducing new ideas and explaining old ones - yǐn xīn tǔ gù