He was lying on something that felt like a camp bed, except that it was higher off the ground and that he was fixed down in some way so that he could not move.

他躺在一张好像是行军床那样的床上，不过离地面很高，而且身上好像给绑住了，使他动弹不得。

youdao

The higher you get off the ground, the colder it gets.

离地面越高，温度越低。

youdao

The higher you lift yourself off the ground, the greaterthe shock you have to absorb when landing and the faster your legs willfatigue.

你让你自己离地面越高，当着地时你不得不吸收更大的震动，而且你的腿会疲劳的越快。

youdao

"My wife went to work in the hospital, I dropped my son off at relatives living on higher ground, and I stayed to look after the house, " he said.

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Today as most days, offerings are being placed in the doorways of the houses and ornate family temples, at ground level to ward off demonic spirits and higher up to welcome the sun.

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The ground might be lower or higher on the take-off or landing side and all these things throw the horse's center of gravity.

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