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Randomized evaluations can help us understand what works and what doesn't in development.
随机评估可以帮助我们了解发展中哪些措施有效,哪些无效。
记忆是个狡猾的东西。它并不总是可靠的,但它是我们拥有的一切。
The only thing that can make you successful is hard work.
We are all exiles in some way, searching for a home that may not exist.