“膝弯曲”造句
与此同时, 要确保你的双
膝弯曲的幅度不大.
Along with that, make sure you don't have much knee bend.
单膝向胸部收缩.平躺,双
膝弯曲. 膝盖上提,单膝靠近胸部,保持20秒.
Hold thighknee and bring one knee up to chest. Hold 20 seconds.
单膝向胸部收缩.——平躺,双
膝弯曲.膝盖上提,单膝靠近胸部,保持20秒.
Hold thigh behind knee and bring one knee up to chest . Hold 20 seconds.