To burn bones for fuel (due to extreme lack of resources); describes a desperate plight of starvation and deprivation, often used to depict the extreme misery and destitution of people during famine or prolonged siege.
在那个漫长的冬天，村子里的人们不得不节衣缩食，甚至到了析骨而炊的境地。
During that long winter, the villagers had to economize on food and clothing, even reaching the point of splitting bones for fuel to cook.
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