Use Method: lie down on the camber and hook the feet at a rung. put the hands behind the head. Use abdominal muscles to sit up and return to original position.

使用方法：人体躺在器械上，用脚勾牢横杠，双手交叉置于脑后，利用腹部肌肉力量收缩坐起，缓慢还原，反复使用。

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Use Method: lie down on the camber and hook the feet at a rung. put the hands behind the head. Use abdominal muscles to sit up and return to original position. Repeat the same movement.

使用方法：人体躺在器械上，用脚勾牢横杠，双手交叉置于脑后，利用腹部肌肉力量收缩坐起，缓慢还原，反复使用。

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Once most wires are bent out of shape, they don't return to the original position.

大多数电线一旦弯曲变形就恢复不了原状。

《柯林斯英汉双解大词典》

He was then pulled backwards a few steps and asked to return to his original position.

ECONOMIST: Consciousness

They were then asked to return to their original position.

CNN: Scientists recreate out-of-body experience

Reaction wood has a different cellular characteristic to normal wood and is formed when branches or stems have been disturbed and the tree attempts to return to its original position.

BBC: Sugar-rich willow can boost biofuels' green credentials