Well-designed graphical user interfaces can free the user from learning complex commandlanguages.
设计得好的图形用户界面可以使用户从学习复杂的命令语言中解放出来。
2
OS user interfaces typically use commandlanguages. The user USES a command to set up an appropriate computational structure to fulfill a computational requirement.
操作系统用户接口一般使命令语言，用户通过命令建方合适的计算结构以满足计算要求。
3
However, our primary interest was in the tools, not their commandlanguages. Thus we didn't invest much effort in the commandlanguages and the languages ended up being weak and quirky.