"On an aircraft of that size, even a slight reduction in fuel burn makes a big difference to overall cost," said Paul Sheridan, Head of Risk Advisory at Ascend.

“对于这么大的飞机，哪怕是减少一点儿燃油消耗，对成本控制的效果也是很明显的。”来自Asend风险咨询公司的头儿paul Sheridan如是说。

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Paul, before Denver most polls gave Barack Obama a slight edge, often within the margin of error, but an edge.

NPR: After Conventions, McCain Takes Lead In Some Polls

Pope John Paul II had altered the voting process to allow a candidate to be elected with only a slight majority.

BBC: Pope Benedict (file image)