The normal anatomy the spine is preserved since the frontal approach takes advantage of normal tissue planes and does not require removal of any bone.

前路进入手术是利用正常的组织面，不需要去除任何骨结构；所以可以保留正常的脊柱解剖结构。

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It will take far longer to sort out a backlog of cancelled flights; to move planes and crew in the wrong places to where they should be; and to return supply chains to normal.

要处理因众多航班取消而造成的积压之事需更多的时日：将被滞留飞机和机组人员转移到目的地和恢复正常供应链。

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In normal life, people have to go to work, arrange schedules, catch planes and trains, and pick up children from school at given times.

在平日生活中，人们必须要在给定的时间上班工作，安排日程，赶飞机火车，去学校接孩子。

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Another cause of the condition is the perception of a non-dangerous event -- such as turbulence or normal sounds that planes make -- as being an actual threat to one's safety.

CNN: Seeing crash reports can worsen flying phobia

Air traffic control personnel "would have known immediately" of a crisis when the planes veered away from their normal route, according to Chris Yates, aviation security editor of Jane's Defence Weekly.

BBC: Cockpit drama of doomed planes

Controlling planes over oceans presents all kinds of challenges because aircraft are out of normal radio and radar range.

WSJ: How New Air-Traffic Control Systems Operate Over Oceans