五月，Continental航空公司和United航空公司宣布了合并计划，取代Delta成为世界上最大的航空运输商。
In May, Continental and United airlines announced a definitive merger plan, making it the world's biggest air carrier -- a title previously held by Delta.
欧洲航行安全组织，总部坐落在布鲁塞尔，专门协调欧盟区域内的航空运输，表示有超过2400班次计划内航班在星期日被取消。
Eurocontrol, the Brussels-based agency that coordinates air traffic management across the region, said that 20, 000 flights, out of a regularly scheduled 24, 000, were canceled on Sunday.
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