The next step is to change the default sound system preferences.
下一步，更改系统声音配置。
Dive into System Preferences and there are more changes to be seen.
进入系统设置，将会看到更多变化。
How can I change the Settings and preferences of System Utilities Suite?
如何更改系统应用程序套件的设置和偏好？
How can I change the Settings and preferences of System Utilities Suite?
如何更改系统应用程序套件的设置和偏好？
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