单词	backing yarn
释义	backing yarn noun : the yarn that holds the tufts and forms the skeleton of a pile fabric Word History First Known Use 1942, in the meaning defined above
随便看	switch tower switch with switch with someone switch-hit switch-hitter switch-hitting switch-horn switch-ivy switchable switchback switchbacked switchbacking switchbacks switchblade switchblades switchboard switchboards switched switched off switched on switchel switchels switcher switcher gear switcheroo

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