The explanation of Dun Yu is still stupid. Dun, pass "blunt". "Lunheng·Shangchong" by Wang Chong of the Han Dynasty: "The strong eats the weak, and the knowledge of wisdom can reverse the stupidity." Word breakdown Interpretation of "Dun" (Dun) ù A short stop of time: pause. Pause. The cadence. Suddenly, immediately, all of a sudden: suddenly. Immediately. Epiphany. A sudden enlightenment occurred. Knock, stamp: bow before bowing. Processing, setting: settling. Rectify. Tired: sleepy. Lawton. In calligraphy, the upper finger moves the pen downwards with force and does not move temporarily. The explanation of foolishness is foolish ú. Stupid, stupid: a fool. stupid. madness . Foolish. Fool (foolish person). Ignorance (lack of knowledge, cultural backwardness). Stupid. Stupid. Unreachable. Great wisdom is like a fool (people with great wisdom do not show off their intelligence, but appear to be stupid on the surface, also called "great wisdom is like a fool").