1) This book is the most expensive.
这本书最贵。
2) The price of this book is high.
这本书很贵。
3) Both books / Both the books / Both these books are expensive.
这两本书都很贵.
4) This book is a little expensive.
这本书有点贵。
5) This one is the most expensive.
这个最贵。
参考词条