应用程序必须对老年人和其他阅读小文本时有困难的人是可用的。
The application must be usable by the elderly and others who have difficulty reading small text.
网景公司实际上只是打算创建一个能用于通过网络，阅读保存在其他计算机上的文字和照片的程序。
Netscape wasn't just trying to build a program for reading text and photos across a network of connected computers.
接下来的字段是engine，这是一个数字，表示使用哪个程序来阅读信息，是Festival、MPlayer还是其他的声音管理程序。
The next field, engine, is a number that represents which program is going to announce the information, whether it be Festival or MPlayer or some other sound manager.
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