英國超市將巧克力鎖進防盜盒阻止「訂單式」偷竊
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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.”
深山中的贵州龙里县，从修通产业路到规模化种植，从种苗繁育到开展深加工，政策持续发力，产业逐步升级，刺梨成为托稳果农增收的支柱产业。