With a more aerodynamic shape and framed by a curved tail plane, these engines would make for a more streamlined aircraft, as well as directing most of their noise upward.
通过更加符合空气动力学的形状和一个曲线尾巴的飞机结构，这些发动机将使飞行更有效率，同时会将绝大部分的噪音传向空气上方。
As Rescorla stood directing people down the stairwell on the 44th floor, the second plane hit--this time striking about 38 floors above his head.
当Rescorla在44楼站着引导人们下楼时，第2架飞机撞过来了——这次就撞在他头上面的38层。
As Rescorla stood directing people down the stairwell on the 44th floor, the second plane hit--this time striking about 38 floors above his head.
当Rescorla在44楼站着引导人们下楼时，第2架飞机撞过来了——这次就撞在他头上面的38层。
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