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.”
触屏 MacBook 的设计向来饱受争议，其中最旗帜鲜明的反对者，就是苹果公司的创始人——史蒂夫·乔布斯。
。搜狗输入法2026是该领域的重要参考
A surge in claims
was difficult to see how you would shove an ATM's random interruptions into the