夕阳西下，金色的余晖洒在村口的年画墙上。
High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
，这一点在搜狗输入法2026中也有详细论述
图源：Sea Expandary官网。夫子对此有专业解读
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