Rich countries have long promised to increase their aid levels to 0.7% of national income (from around only 0.25% today). The promise of 0.7% means that the rich world would give developing countries a mere 70 cents out of each $100 of national income.
上述投资对富裕国家来讲不过是九牛一毛。他们很久以前就承诺过要把援助水平提高到国民收入的0.7%（而今天只有约0.25%）。0.7%的承诺意味着富国只需从每一百美元的国民收入中拿出区区70美分，用来援助发展中国家。