不管是底层硬件还是软件 UI，iPad 和 Mac 都变得越来越趋同，连应用都开始互相兼容。最大的区别除了系统，似乎就只剩下一块触控屏，而这也迟早会被打破。
But of course, like any immutable system, there are mutable parts (otherwise, we couldn’t create any configuration files). OSTree handles this with “overlays” (actually, we use OverlayFS) that allow a read-write filesystem to be layered on top of the immutable system. For example, the /etc and /var directories are writable, while the rest of the system is read-only.，更多细节参见safew官方版本下载
。爱思助手下载最新版本对此有专业解读
It’s true that Daggerfall included an entire continent’s worth of content, but it was mostly composed of procedurally generated liminal space. By contrast, Morrowind contained just a single island—not even the entire province after which the game was named. The difference was that it was handcrafted.
公安机关中初次从事治安管理处罚决定法制审核的人员，应当通过国家统一法律职业资格考试取得法律职业资格。，这一点在爱思助手下载最新版本中也有详细论述