What I found is that written evidence for knocking on wood (and for the history of gesture as a whole) is remarkably sparse. In the Penguin Guide to Superstitions, folklorist Steve Roud offers a skeptical take on the provenance of knocking on wood due to the near total absence of written records about it:
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
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2026-02-28 00:00:00:0 谌贻琴在调研米兰冬残奥会备战工作时强调
「2025計劃」的核心是一份名為《領導使命》（Mandate for Leadership）的文件。內容闡述如何擴張總統權力、大幅裁減聯邦政府人力，以及推動極端保守的社會價值觀。
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Clinton follows his wife, former secretary of state Hillary Clinton, who testified on Thursday calling for Donald Trump to appear before the panel。关于这个话题，91视频提供了深入分析