What I found is that written evidence for knocking on wood (and for the history of gesture as a whole) is remarkably sparse. In the Penguin Guide to Superstitions, folklorist Steve Roud offers a skeptical take on the provenance of knocking on wood due to the near total absence of written records about it:
“自己做错了事，（终究）要给孩子上户口。”兰丽说。她花钱托人找“关系”，也尝试找人“买证”，最后被骗了3万多元，证还是没办下来。
。WPS官方版本下载是该领域的重要参考
2026-02-28 12:002026년 2월 28일 12시 00분，更多细节参见搜狗输入法2026
The program was developed in 2007 as SeoQuake is a