v.航空邮寄( airmail的过去式和过去分词 ); 投; 掷; 抛

1.Please send this letter by airmail.
[汉]请用航空邮件寄送此信。
2.Airmail is quicker than sea mail.
[汉]航空邮递比海上邮递快。
3.I would like to send this letter by airmail.
[汉]这封信我想寄航空。
4.Do you want to airmail it or not?
[汉]你想发航空信吗？