谷愛凌：輿論漩渦中的「冰雪公主」
/etc is also writable, but it’s managed a bit differently. OSTree uses a technique called “etc overlay” to handle modifications in /etc. When an update is applied, OSTree compares files in the new version with those in /etc and applies changes intelligently, preserving local modifications as much as possible.，更多细节参见91视频
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（五）向场内投掷杂物，不听制止的；
运营四年之后，这条船又要原价转出了。