The “Knocking on Wood” Wikipedia page mentions Roud’s conclusion, and this claim of a 19th century origin has circulated online as the final say on the matter. If you go back to the original, though, Roud’s proposal actually ends on an ambivalent note: “Before this theory [of 19th century origins] can be finally accepted, however, an examination of the history of European forms of this custom would be advisable.”
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。关于这个话题，WPS官方版本下载提供了深入分析
나무 돌보는 ‘자연인’이 월300만원…나무의사 자격증 관심 커지는 이유는[은퇴 레시피]
圖像加註文字，預算管理局局長羅素・沃特（Russell Vought）於七月在美國國會大廈接受記者訪問多名「2025計劃」撰稿人如今位居特朗普政府要職，包括中情局（CIA）局長拉特克利夫（John Ratcliffe）、聯邦通訊委員會（FCC）主席布蘭登·卡爾（Brendan Carr）、特朗普的「邊境沙皇」湯姆·霍曼（Tom Homan）、證券交易委員會主席保羅·阿特金斯（Paul Atkins），以及主張關稅政策的貿易顧問彼得·納瓦羅（Peter Navarro）。