1·In the 400-meter match, he got ahead of Mr. Bacon every time One day, Mr. Bacon received airmail from Jack.
在400米赛跑中，每次都是他领先培根先生。一天，培根先生收到了来自杰克的航空邮件。
2·Excuse me. I would like to send this letter by airmail.
不好意思，我想寄封航空邮件。
3·Oh. By the way, can you give me some airmail labels?
哦，对了，给我一些航空邮件标签好吗？
4·Please put this airmail sticker on the front of the envelope.
请将航空邮件的粘贴标签贴到信封的正面。
5·People could receive an airletter or airmail within one day.
人们可以在一天之内收到航空信或航空邮件。