Read Edit View history 头头是道 tóutóushìdào HSK7 clear and logical Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 头头是道/ 頭頭是道 tóutóushìdào clear and logical idiom 他分析起问题来头头是道。 Edit Delete References Add reference No references for this word.