To grasp the changing courses , we should standardize and unify the oral and written marking within the framework of scheme for the chinese phonetic alphabet to meet the demand for learning the chinese language 要快速掌握连读词语的变调读音，需在《汉语拼音方案》的框架内进行口语变调与书面标示变调的规范统一，以适应学习汉语的需求。
