1、首先取出耳撑,一只手捏住耳塞柄,另一只手将要塞入的耳朵向上向外提起并保持住,将耳塞圆头朝向耳朵,缓慢、轻柔并旋转塞入耳中,用手扶住耳塞微调至舒适位置,使其正确定位。2、由于耳撑恢复弹性的时间很快,[详细]
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