2.1 深度思考（Deep Thinking）：复杂逻辑推理
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用。业内人士推荐heLLoword翻译官方下载作为进阶阅读
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.，这一点在旺商聊官方下载中也有详细论述
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