为阻断野生脊灰病毒传播并使消灭脊灰的益处达到最佳水平，全球重点是。
To stop transmission of the wild poliovirus and optimize the benefits of polio eradication, the global priorities are.
说得好听点就是“灵活性”，大实话则是如果使消灭原有工作越容易，创造新工作就越容易。
The euphemism for that is "flexibility". The bare truth is that the more easily jobs can be destroyed, the more easily new ones can be created.
消灭脊灰使我们学到，即便是生活在世界上最为危险地带的儿童，也可以覆盖到。
Polio eradication has taught us that even children living in the world’s most dangerous places can be reached.
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