中古知庄章三组声母在现代北方方言的读音情况复杂,如果从音类着眼,大致可以归纳为五种读音类型:(一)知二庄、知三章对立型;(二)开口、合口对立型;(三)庄组内转、外转对立型;(四)准合一型;(五)自由变读型。 In the ancient Zhuangzhang three groups of consonants in the modern northern dialects of the pronunciation of the situation is complex, if from the phonetic point of view, can be roughly classified into five types of pronunciation: (a) know two village, known three chapters opposite type; (two) openings, Opposition; (3) Chuang group internal rotation, Opposition Opposition; (4) Quasi-type;