在扭转力方面，1级和2级的椎间盘在所有水平都保存了运动。
In torsion, both 1 - and 2-level discs preserved motions at all levels.
在第二个50年里，这两家机构的影响力都扭转过来，有事实可以证明。
In their second 50 years the two institutions' impact has arguably been reversed.
背部在挥杆时起著重要作用，因为我们要经常弯曲背部来进行扭转和发力。
The back is an important part of the golf swing because we use a lot of bending to create torque and power.
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