“滚边”怎么读？

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这条红裙的领口有细细的黑色滚边。The red dress had slim black piping around the neck.她用蓝绸子给裙子滚边.She piped the skirt with blue silk.将织物的毛边与滚边未经加工的边对齐。Keep the rough edge of the fabric aligned with the raw edge of the piping....