Installing a dictionary add-on will add a new language option to your %(app_name)s spell-checker, which checks your spelling when you fill out Web forms. Language pack add-ons change the language of the entire application.
安装一个词典类型的附加组件将为您的 %(app_name)s 拼写检查器添加一个新的语言选项，帮助您在填写 Web 表单时检查拼写。语言包附加组件则更改整个应用程序的界面语言。