At the post office

Air mail, please.
       
Postal¹ clerk:     —     Yes, ma′am?
Mrs Ryefield:     —     How much is a stamp to send a letter to France, please?
Postal clerk:     —     Air mail or surface mail?
Mrs Ryefield:     —     Air mail, please.
Postal clerk:     —     That′ll be eighty-five cents.
Mrs Ryefield:     —     Four stamps, please. How much is that?
Postal clerk:     —     Three dollars and forty cents.
Mrs Ryefield:     —     There you go.

1 postal   

adj.邮政的，邮局的

参考例句：

• A postal network now covers the whole country.邮路遍及全国。
• Remember to use postal code.勿忘使用邮政编码。