1. The face is ashen, which is a Chinese idiom. Its pinyin is mi à n r ú t ǔ s è, which means that the face is gray white and describes extreme fear.
2. From "Dunhuang Bianwen Anthology - Catching Jibu Bianwen": "Go back to the wall to see Jibu, and look like dirt and eyebrows."
3. Idiom usage: as predicate, attribute, complement, adverbial; It refers to panic.
4. Idiom story: During the Southern Song Dynasty, the scholar Yu Liang walked 8000 miles to Hangzhou, the capital, to take an exam. As a result, he failed. He was penniless, so he went to the West Lake of Hangzhou to write a poem about the magpie bridge and was ready to commit suicide. In his dream, the Emperor decided that Yu Liang was a talented person, and sent someone to the hotel to find him. The shopkeeper, Grandma Sun, was so frightened that Yu Liang was appointed a senior official.