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以上来源于: WordNet
For example, Travelocity has now introduced a service that allows the user to check out the availability of special fares on any route -- within North America or international -- on the days those discounts are offered by specific carriers.
CNN: Technology: Flight Planning 101
The recent availability of Wi-Fi systems and the ability to conduct face-to-face meetings en route further increases the efficiency of a private jet.
FORBES: Private Jets: Efficiency Tools, Not Posh Luxuries
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