With the wide application of Chinese characters, learners of Chinese often fail to pronounce some word segments in a process of reading a Chinese character text aloud, especially some polyphonic word segments. Therefore, the learners of Chinese always come across obstacles of reading aloud. Even though pronunciations of a polyphonic word segment can be obtained by looking up a dictionary, much time is required to do so. In addition, because a vocabulary included in the dictionary is large, it is difficult for a user to grasp the most accurate pronunciation of the polyphonic word segment. This lowers the efficiency and effects in text reading, thereby affecting effects in Chinese learning.