Fixed flexion deformity of the hip forces the lumbar spine into lordosis on assuming an upright posture and may aggraate lower back pain symptoms.是什么意思_Fixed flexion deformity of the hip forces the lumbar spine into lordosis on assuming an upright posture and may aggraate lower back pain symptoms.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句