Eliminating poverty is now a challenge, rather than the unchangeable reality of human existence it used to be - because we know, in principle, how to solve it.

• 如今消灭贫困是一项挑战，而并非像过去那样，是人类生存过程中一个无法改变的现实。因为现在我们已经大致知道如何解决这个问题。