user-defined character-formation program

例句：

1. 1. The user-defined character formation program allows users to create their own characters based on predefined templates.
   用户自定义字符形成程序允许用户根据预定义模板创建自己的字符。
2. 2. This program is designed to help users define their own characters for use in games and applications.
   该程序旨在帮助用户定义自己的字符，用于游戏和应用程序中。
3. 3. The user-defined character formation program has become increasingly popular among graphic designers who need to create unique and personalized designs.
   用户自定义字符形成程序在需要创建独特和个性化设计的图形设计师中变得越来越受欢迎。