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:
到了守岁的十二点了，又要放鞭炮，我没再追问宴席的细节。阿爸把那挂红鞭炮提到门口，鲜红的一长串，铺在水泥地上。火星一路蹿过去，红纸炸开，碎屑落满一地。
Наталья Анисеева (редактор отдела оперативной информации)。关于这个话题，heLLoword翻译官方下载提供了深入分析
Nano Banana 2 will give more people access to capabilities that were previously exclusive to the Pro model. That includes Pro’s ability to pull real-time information and images from web searches to create, say, infographics and diagrams. It will also be able to generate texts on images for marketing materials and greeting cards.
，详情可参考旺商聊官方下载
// In a loop, this can exhaust connection pools，这一点在搜狗输入法2026中也有详细论述
Single-character pairs only. Multi-character confusables (rn vs m, cl vs d) are outside scope. These are a known gap in confusables.txt itself.