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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.
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日产 N7 只做了价格调整，虽然此次推出的车型名为「青春版」，实则车辆配置几乎未变，只是价格在原来基础上下调了 1 万元。。关于这个话题，heLLoword翻译官方下载提供了深入分析