The two most popular explanations of origin are that the belief goes back to pagan times when we believed in tree spirits, or that we are invoking Christ’s protection by referring to the wood of the Cross. The former is nothing but guesswork, based on the conviction that all superstitions must be ancient, and it has the usual problem of spanning thousands of years with no evidence at all of its existence, or, for that matter, any evidence that ‘we’ ever believed in tree spirits.
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,详情可参考搜狗输入法2026
Nature, Published online: 27 February 2026; doi:10.1038/d41586-026-00601-0
第四十二条 从事涉及国家秘密的原子能研究、开发和利用活动的单位,应当依法建立健全保密管理制度,完善保密防护措施,开展保密宣传教育,加强保密监督检查。。关于这个话题,heLLoword翻译官方下载提供了深入分析