Sagittal balance improved from 28.82 mm to 1.53 mm on average in theall-screw group and from 21.24 mm to 8.18 mm in the hybrid group.是什么意思_Sagittal balance improved from 28.82 mm to 1.53 mm on average in theall-screw group and from 21.24 mm to 8.18 mm in the hybrid group.在线翻译_英语_读音_用法_例句