This was all explained in the express letter I sent you.

快信给先生就是解释这一回事.

汉英文学 - 围城

I don't think there's any need to send an express letter but to write more often. "

不必发快信,多写几封平信,倒是真的. ”

汉英文学 - 围城

What's the surcharge on this express letter, please?

这封快信的附加费是多少钱?

互联网

Enterprise express letter: used to manage customer and employee information card folder management capabilities.

企业快信: 用于管理客户和员工信息的名片夹管理功能.

互联网

Could you tell me what the surcharge on this express letter will be?

你能告诉我这封快信的附加费是 多少 ?

互联网