大腿保持在中立状态配合膝盖的伸展，拉长和缩回腿筋。
The femurs are held in neutral alignment with knees extended, elongating the hamstrings and low back.
但是法国和西班牙似乎倾向于投赞成票，而英国处于中立状态。
But France and Spain seem minded to say yes, with Britain hovering in between (see Charlemagne).
就像一辆车减速一样，在后弯之后前屈之前，脊柱也需要一些时间来恢复到中立状态。
Like a car gearing down, the spine needs some time to return to neutral after back bending before moving into forward bending.
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