何謂工作區？它扮演什麼角色？
Workspaces refer to the grouping of windows on your desktop. You can create multiple workspaces, which act like virtual desktops. Workspaces are meant to reduce clutter and make the desktop easier to navigate.
Workspaces can be used to organize your work. For example, you could have all your communication windows, such as e-mail and your chat program, on one workspace, and the work you are doing on a different workspace. Your music manager could be on a third workspace.
使用工作區：
In the Activities overview, you can horizontally navigate between the workspaces.
If more than one workspace is already in use, the workspace selector is shown between the search field and the window list. It will display currently used workspaces plus an empty workspace.
To add a workspace, drag and drop a window from an existing workspace onto the empty workspace in the workspace selector. This workspace now contains the window you have dropped, and a new empty workspace will appear next to it.
要移除工作區，僅需將工作區中的視窗全部關閉，或移至其他工作區即可。
永遠至少會有一個工作區。
