中国已经建立一些区域小航空公司并且宣布到2020年挑战波音和空中客车的大飞机市场。
China already builds some small regional airliners and has announced plans to challenge Boeing and Airbus in the market for big jets by 2020.
67%的受访企业认为在接下来的18个月，增加收入，降低成本，是航空公司的利润管理的重大挑战。
Increasing revenue and reducing costs is among the most significant challenges in managing airline profits over the next 18 months, according to 67 percent of those surveyed.
对于欧洲旅游网站来说，更大的挑战是如何处理未来其与航空公司的关系。
The bigger question for European travel websites is how they can manage their relationship with airlines in the future.
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