sufficiency
noun [ S or U ] formal uk/səˈfɪʃ.ən.si/ us/səˈfɪʃ.ən.si/
足量，充足
an amount of something that is enough, or the quality of being good enough
Will there still be a sufficiency of resources for our great-grandchildren? 还会有足够的资源留给我们的子孙吗？
There is concern over the sufficiency of plans to tackle the problem. 人们对计划是否足以解决问题表示怀疑。