Yesterday I went to the post office specifically to send a package.
The courier delivered the package to the recipient on my behalf.
The recipient was very happy after receiving the package.
Mom said sending a package requires paying postage, I think couriers work very hard.
A friend asked me to do something for him, which is to go to the train station to refund and change the ticket.
But train tickets cannot be rescheduled, only refunded, and he needs to transfer to Beijing.
Key vocabulary
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