在存在此现象的多数国家里，有条件现金援助是第一个把焦点聚焦在极度贫穷人身上的计划。
In most of the countries where they exist, conditional cash transfers are the first programs to truly focus on the poorest.
大多数答案聚焦在难以解释科学上——因为它充满了不确定性和限定性条件。
Most answers have concentrated on the difficulty of explaining science - riddled as it is with uncertainties and qualifications.
运用较简明的数学推导，给出了在该磁场分布下带电粒子流聚焦的条件。
Using simple math deduction results in the focusing conditions of charge-particle flow in the distribution of magnetic fields.
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