// 步骤2：按位置降序排序（离终点越近的车越先处理）
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:
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3014249010http://paper.people.com.cn/rmrb/pc/content/202602/27/content_30142490.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/27/content_30142490.html11921 纵深推进安全生产治本攻坚 严密防范森林草原火灾风险
Wait — block until space becomes available
According to Chris Fayers, head of environment at Hinkley Point C, the system has been working "really well".