Lie back so the blankets run the length of your spine, with your head and shoulders on the floor.

躺下去正好让脊柱全躺在毯子上，头和肩膀放在地板上。

youdao

Elongate your spine as if a thread extending from the top of your crown was pulling your head, neck and back straight up towards the sky.

伸展你的脊柱，好像有一根线从头顶直直的往上拉你的头，脖子和后背。

youdao

Lie on the roller with your knees bent and your feet on the floor, so the roller extends along your spine from your sitting bones to the top of your head.

双膝弯曲，两脚着地，躺在这个滚筒上，让它沿着你的脊柱，一直从尾骨到头顶。

youdao

Damage to more vulnerable parts of the body like the head and spine is thankfully less common.

BBC: Just how dangerous is skiing?

For every inch you tilt your head forward, the pressure on your spine doubles.

CNN: Your smartphone is a pain in the neck

This snarling, fire-snorting Chimera, which has a storied history, epitomizes the mythical monster that figures in many classical Greek texts and was first mentioned, among those that survive, in Homer's "Iliad": it's a dramatic fusion of a lion's head and body, a serpent forming the tail, and a horned, bearded goat's head and neck protruding from the spiked spine of the lion.

WSJ: The Imaginary Made Nearly Read | The Chimera of Arezzo | Masterpiece by Judith H. Dobrzynski