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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.”
Что думаешь? Оцени!。业内人士推荐体育直播作为进阶阅读
Владислав Китов (редактор отдела Мир)。体育直播对此有专业解读
在这一具有明显过渡性质的权力安排中，出现了程序权力与实际权力分离的局面。
致力非凡之事业，必有非凡之精神。。WPS官方版本下载对此有专业解读