Даниил Иринин (Редактор отдела «Наука и техника»)
A few months later, the Korean War broke out and his former fellow apprentice pilots were sent to South East Asia. Many never got to finish their education.
，更多细节参见服务器推荐
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:
一起发布的 Galaxy Buds 4 系列：标准版售价 1399 元，Pro 售价 1899 元。