为世界粮食短缺问题找到长期技术解决方案的希望似乎很难实现。
The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill.
随着世界人口的持续增长，粮食的供应问题越来越令人担忧。
As world's population continues to grow, the supply of food becomes more and more of a concern.
联合国设立了世界粮食计划署，其宗旨之一是缓解全世界的饥饿问题。
The UN sets up the World Food Programme, one of whose purposes is to relieve worldwide starvation.
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