你没有必要去甚至需要关闭当前应用程序并返回到今日屏幕！
You don't even need to close the current application and go back to the Today screen!
关闭当前不使用的应用程序，这样能增加可用的内存。
Make more memory available by closing applications that you aren't using.
当应用程序关闭时，会关闭数据库连接、保存当前状态，等等。
When the application shuts down, it can close database connections, save the current state, and so on.
当应用程序关闭时，会关闭数据库连接、保存当前状态，等等。
When the application shuts down, it can close database connections, save the current state, and so on.
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