降低系统音量的键绑定。

Binding to lower the system volume.

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但是最终输出的音量始终应该是由系统音量控制的，无论是使用音量按钮还是音量滑块。

But the volume of the final audio output should always be governed by the system volume, whether it's adjusted by the volume buttons or a volume slider.

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方便的软件支持快捷方式来调整系统音量，静音，运行桌面应用程序或打开一个网站，文件或文件夹。

The handy software supports shortcuts to adjust system volume, mute, run desktop applications or open a website, file or folder.

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