They may have heated the mammal bones before crushing them, to enhance the extraction of the marrow fat.

他们可能会在粉碎哺乳动物的骨骼前先加热它们来提高骨髓脂肪的提取。

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Then for the first time I noticed the poor old earth-coloured bodies, bodies reduced to bones and leathery skin, bent double under the crushing weight.

这是我第一次注意到那瘦得皮包骨、土地肤色的躯体，被沉重的担子压得快打对折了。

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