我的看法是，用于定义这些高级条件的用户接口和计算机语言通常令人费解或非常复杂，以至于普通人难以使用。
My thinking is that the user interfaces and computer languages that are used to define these advanced conditions are usually just too convoluted or complex to be within reach for mere mortals.
声卡安装在系统机箱内，它在计算机后面有一些突出的接口，可供用户将扬声器、耳机和麦克风插在上面。
Housed within the system unit, a sound card contains connectors that project from the back of the computer so that you can attach speakers, headphones, and a microphone.
协调操作系统的计算机资源，提供用户和计算机之间的接口，并运行应用程序。
Operating systems coordinate computer resources, provide an interface between users and the computer, and run applications.
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