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.
本项目刚刚启动，其宗旨是利用手机开展个人调查，收集生活方面的实时数据。
The aim of this project, which is just unfolding, is to use cell phones for self-administered surveys in order to collect real-time data on life events.
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