When shoes slide across a floor, wave-like deformations of the sole can generate squeaking. The pitch of the squeak depends on the rate at which deformations are generated.
2026-02-27 00:00:00:0本报记者 郁静娴3014246010http://paper.people.com.cn/rmrb/pc/content/202602/27/content_30142460.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/27/content_30142460.html11921 小麦变身记（三餐四季）
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But its age verification plan, which would have required either a facial, photo or government ID scan to confirm the claimed age of users, drew near-instant ire from Discord's community.