mail plane

例句：

1. 1. The mail plane landed safely at the airport.
   邮件飞机安全降落在机场。
2. 2.The mail plane was carrying a large shipment of goods to Europe.
   邮件飞机正运送一批货物前往欧洲。
3. 3. The mail plane is an essential mode of transportation for many people.
   邮件飞机是许多人出行的重要交通工具。