В России ответили на имитирующие высадку на Украине учения НАТО18:04
组织未成年人从事第一款活动的，从重处罚。
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Кадр: @whitewall.art
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:
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