At the Post Office

今天下午我去邮局。

This afternoon I go to the post office.

我想给朋友寄一本书。

I want to mail a book to my friend.

我的朋友住在北京。

My friend lives in Beijing.

这本书很新，也很漂亮。

This book is very new and very nice-looking.

寄这本书要五块钱。

Mailing this book costs five yuan.