选举期间，政客们都非常忙碌。
但在这片沙漠中，还是有着生命的迹象：在萨尔蒂约的主街上，经济危机期间，十分之四的店铺关了门，现在又忙碌如常了。
In the desert there are signs of life: Saltillo's high street, where four out of ten shops closed during the recession, is busy again.
当人们被给予某一特定任务去完成时，其会把注意力集中在该任务上，但另一方面，大脑的其他区域在故障时间期间仍然保持忙碌，研究者在星期五出版的科学杂志上报道。
When people are given a specific task to do, they focus on that task, but then other brain regions get busy during down time, the researchers report in Friday's issue of the journal Science.
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