但我们已经有了一个由结构化的自然语言命令组成的简陋的系统。
Instead, we have the rudimentary systems of structured natural language commands.
该系统建立于老式命令行界面之上，用户需要与干巴巴的提示性语言打交道，比如C:\>之类。
It was based on an old-fashioned command line interface that confronted users with surly little prompts such as C:\>.
虽然您可以使用php为系统管理和传统数据处理之类的任务创建命令行脚本，但是编程语言对Web应用程序的性能有主要影响。
While you can use PHP to create command-line scripts for such tasks as systems administration and traditional data processing, the language predominantly powers Web applications.
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