列车广播英语作文通常包括以下内容：

欢迎词

开始时，对乘客表示欢迎，例如：“Good morning, ladies and gentlemen. Welcome aboard Train number D5106 from Chengdu to Chongqing.”

列车信息

提供列车的编号、起始站、目的地以及到达时间，例如：“I am the chief public-address announcer of this train. This is Train number D5106 from Chengdu to Chongqing, departing at [departure time] and arriving at [arrival time].”

列车晚点情况 （如有）：

如果列车晚点，需要通知乘客，例如：“Dear Passengers, this train is running behind schedule due to heavy rain in Hami. The estimated arrival time is now [new arrival time].”

其他重要信息

可以包括安全须知、列车服务信息、紧急疏散指示等，例如：“For your safety, please remain seated until the train comes to a complete stop and the doors are opened. Thank you for traveling with us.”

结束语

结束时，对乘客表示感谢，例如：“Thank you for choosing our train service. Have a pleasant journey!”

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Good morning, ladies and gentlemen. Welcome aboard Train number D5106 from Chengdu to Chongqing.

I am the chief public-address announcer of this train. This is Train number D5106 from Chengdu to Chongqing, departing at [departure time] and arriving at [arrival time].

For your safety, please remain seated until the train comes to a complete stop and the doors are opened. We apologize for any inconvenience caused by the delay due to heavy rain in Hami. The estimated arrival time is now [new arrival time].

Thank you for traveling with us. Enjoy your journey to Chongqing!

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请根据实际情况调整上述模板中的时间和内容，以确保广播的准确性和及时性。