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