许多人认为，空中交通管制系统是由一排坐在美国机场雷达屏幕前的管制员组成的，他们告诉到达和离开的航班该做什么。
Many people think that ATC consists of a row of controllers sitting in front of their radar screens at the nation's airports, telling arriving and departing traffic what to do.
明天接着坐tw的551航班，11：55离开达拉斯，到—我是说，11：55离开圣•路易斯，1：45到达达拉斯。
And tomorrow he is continuing on TW Flight 551, leaving Dallas at 11:55, and arriving — I mean, leaving St.Louis at 11:55 and arriving Dallas at 1:45.
销售：稍等我查一下……我们有CA589航班早上11：05离开北京，同一天早上7点到达洛杉矶。
Let me check…We have Flight CA589 leaving Beijing at 11:05 a. m. and arriving in Los Angeles at 7:00a. m. the same day.
一旦进入了第二个步骤，他们必须返回首页，重新登录，然后再次输入到达航班和离开航班的数据。
Once at the second step, they'd have to return to the home page, log in again, then re-enter their arrival and departure data.
一旦进入了第二个步骤，他们必须返回首页，重新登录，然后再次输入到达航班和离开航班的数据。
Once at the second step, they'd have to return to the home page, log in again, then re-enter their arrival and departure data.
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