反切之起源,上不出於丰镐之间,下不迟於当涂之世。前人谓魏孙叔然始作反音者,非也。余於数年前,作反切不始於孙叔海辨一文,论之审矣,(载清华研究院实学月刊第六期)然於所以名为反名为切者,则从无人加意及此。今故详辑此种资料,而曲为检讨。使反切得名之来,源,借以大白於世。或 The origin of anti-cut, not on the abundance of Feng, under no later than when the painted world. Former predecessors that Wei Sunsu began as a non-voice, non-also. After a few years ago, the counter-offensive did not begin with the identification of a text by Sun Shuhai. This is why the details of such information, and music for the review. To reverse the name of the source, so as to the world. or