Many poorer countries don't have enough food to provide basic sustenance.

许多贫困国家甚至没有足够的食物来维持基本的生活。

youdao

The state provided a basic quantity of food for daily sustenance, but little else.

国家提供基本的日常食物供应，仅此而已。

《柯林斯英汉双解大词典》

"Food and fuel, sustenance and energy, malnutrition and health, it does not get more basic than that," he said.

他说：“食品和燃料、生存和能源、营养不良和卫生保健，没有什么比这些问题更加基本的了。”

youdao

Indeed, the Obama Administration has succeeded in expanding government so today more Americans depend on Washington for basic sustenance.

FORBES: Is A "War On Women" The Best That President Obama Can Do?