The state provided a basic quantity of food for daily sustenance, but little else.政府提供了只够维持基本生计的口粮, 别无他物。

He stared at the fishing boat and wondered what kind of life it was to drag sustenance from this hard sea.他盯着那条渔船, 想着靠它在这样一片条件恶劣的海上打鱼为生是怎样一种生活。

The camaraderie that came with membership of a fighter squadron appears to have provided a degree of spiritual sustenance.同属一个飞行中队产生的战友情似乎在一定程度上成了精神支柱。

Efficiency is an issue of optimising an intricate network of processes for the long-term sustenance of performance standards.效率就是为保证绩效标准长期可持续而对复杂流程网络进行优化的问题。