- 由於樣品包裝過重，空郵費用太高。
As the package of sample is overweight, airmailing would be too expensive.
- 噢，還有一件事，我要寄一個航空郵包。
Now, one more thing, I want to send a package by air mail
- 空郵還是平郵？
By airmail or surface mail?
- 我要一封普通郵票和兩封航空郵票。
I need a book of regular stamp and two of airmail
- 屬於或關於航空郵票的。
of or relating to airmail stamps.
- 換句話說我不必把它航空郵寄了，對嗎？
In other word I do not have to send it by air mail, right?
- 這封信以航空郵寄到台北要花多少錢？
How much will it cost to send this letter airmail to Taibei?
- 你想寄平信還是寄航空郵件？
Do you want to send it by air mail or by ordinary mail?