Roud then ventures a theory of his own: the custom, he argues, probably developed from a children’s game called Tig-touch-wood that was popular in early 19th century England.
（作者为三峡植物园林业技术推广站站长，本报记者吴君采访整理）
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"A lot of people use the online world as a place where they can talk about things that they might not feel safe talking about with people in the real world, where being queer might result in being prosecuted," he told the BBC.
Ephemeral tmpfs for all writable paths — cleanup is a single umount2 syscall, not a recursive directory walk