邮件包含飞机注册编号的标题中的信息，以电子邮件的正文中包含的实际天气信息。
The message contains the aircraft registration number in the header of the message, with the body of the message containing the actual weather information.
难道它们不应该像飞机那样必须有编号吗？
Weren't they like planes? Didn't they have to have numbers on them?
飞机的座位是按照从前到后的顺序编号的。
The seat be numbered from the front of the aircraft to the back.
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