about，of，on 表“关于”的区别 ... ample evidence 充足的证据 provisions enough (sufficient) for three months 足够三个月的粮食 means adequate to the ends 和目的相适应的手段 ...
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世界粮食计划署的萨姆坎戈说，通常世粮署会储备足够用三个月的粮食和其它物资，但是现在，他们只能过一个月算一个月。
The World Food Program's Samkange says normally his agency aims to have enough food and supplies in stock to cover three months, but at the moment they are operating on a month-by-month basis.
即使我们有足够的粮食维持三个月，他们以后又将如何生活下去？
Even if we had food enough for three months, how are they going to live?
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