单腿提膝 活动腿沿支撑腿的内沿提膝直至绷直的足尖拼在支撑腿膝内侧的姿态
Single-leg knee lift refers to the posture where the leg is lifted along the inner edge of the supporting leg until the toes are straightened and placed on the inner side of the supporting leg's knee
以上为机器翻译结果，长、整句建议使用 人工翻译 。