There is no explanation
In Chinese idioms, Pinyin is y ǔ w ú Qu á NC ì, which means that words are not chosen and considered. It comes from the book to Yao Zhongcheng in Guangdong Province.
The origin of Idioms
Bao Shichen in the Qing Dynasty wrote a letter to Yao Zhongcheng in Guangdong Province: "it's a rough creation under the lamp, and there's no explanation. It's a cursive note, and it's an implicit observation."
Idiom usage
Used as a predicate or adverbial; used in writing
Chinese PinYin : yǔ wú quán cì
There is no explanation
Avoiding cold and appendicitis. bì liáng fù yán
repay the country with supreme loyalty -- patriotism. jīng zhōng bào guó