Earlier this year the country's Defense Advanced Research Projects Agency announced plans to pay Boeing to investigate formation flight, though the program has yet to begin.

今年早些时候，美国国防高级研究计划局宣布将计划出资，请波音公司研究编队飞行，不过该计划尚未启动。

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Earlier this year the country's Defence Advanced Research Projects Agency announced plans to pay Boeing to investigate for mation flight, though the programme has yet to begin.

今年早些时候，美国国防部高级研究计划局宣布出资让波音公司研究编队飞行的计划，但项目到现在还没启动。

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An airline passenger might volunteer to pay $5 to $40 to offset his flight, with the price linked to distance.

一个航班乘客可能志愿付出5~40美元来抵消他的航行（的排放量），这个价钱与距离有关。

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Passengers often pay no attention to those safety directions before a flight.

VOA: special.2009.01.30

Then she could get on a waiting list for a more desirable flight, or pay 50, 000 miles for an unrestricted domestic round-trip.

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"Customers are inherently more likely to choose PBC if they are going to use an aircraft heavily because they only pay for flight time, " says Wharton's Netessine.

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Under South Africa's rules against capital flight, outside bidders must pay for acquisitions with cash, not with their own shares.

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