Customer:I’d like to post this letter to Korea.
Customer:我想把这封信寄到韩国。

Post office worker:Is it urgent? Would you like the express service?
Post office worker:急不急? 要不要寄特快?

Customer:No thank you. I’d like to send it just by normal post.
Customer:不用,平邮就行,谢了。

英语关键句型：
I would like…我想。。。
I would like to…我想做什么。。。
I’d like…我想(缩写) 。。。
I’d like to…我想(缩写)做什么。。。