“磨破的”常见的英文表达可以是 worn-through 或 rubbed through。
worn-through 强调由于长期使用、摩擦等原因，导致物体表面被磨穿、磨透的状态。例如：The soles of his shoes are worn-through.（他鞋子的鞋底磨破了。）
rubbed through 侧重于描述因反复摩擦而使物体出现破损、穿孔的情况。例如：The fabric on his elbow has been rubbed through.（他手肘处的布料磨破了 。）