When reading a novel on a mobile phone, the words could not be displayed because the screen size or resolution of the mobile phone did not match the novel file. Some novel files may use smaller font sizes and different resolution, causing some words to not be fully displayed when the screen size of the mobile phone is smaller or the resolution is lower. When reading certain novels, some specific font or format may appear. These font or format may not be fully displayed on the phone screen, resulting in some words being incomplete. If your phone supports the online font expansion function, you can try to use this function to expand the font used in the novel so that all the words can be fully displayed.