I recently wanted to create a dictionary library for pinyin Chinese text, but it was not that easy to start. It is not only a word segmentation technology problem, but it is difficult to find a word dictionary with few and comprehensive accents (including reserved words ). Since the words of a single tone are basically determined, the next key word that is more mature than a pair of words becomes the focus. The question is how to take the next step, that is, how to optimize the word of a single tone. Referring to online dictionaries, dictionaries, and ancient Chinese dictionaries, we found that Chinese is indeed a complex thing. To do something, you have to work hard. I'm afraid it may take time, not a day. Some idioms and idioms are too refined and complex. Therefore, definite words must be used to explain and use this explanation as idioms and idioms.