You mentioned that you were walking along this curve, then you look to your right, that is that direction.
当沿着曲线这个方向前进时，往右侧看，那就是正向了。
You are right. We are walking right along the dam of the Xin 'an River Reservoir.
说对了。我们现在就走在新安江水库的大坝上。
Walking brought along the lumbar vertebra to bend forward and rotate with the movement of right and left lower limbs. The main force to finish this movement came mainly from musculus psoas major.
步行带动腰椎向前弯曲并随左右下肢运动而旋转、侧弯，其主要作用力来自腰大肌。
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