He used to make a living by selling books

书───book;过去───past times

There isn't anything of real substance in her book.───她的书中没有任何真正实质性的内容.

Take this book to her, please.───请把这本书捎给她.

Will you have the kindness to hand me that book?───请把那本书递给我好 吗 ?

I have taken two years over this book.───我花了两年写这本书.

My sister gave me a book.───姐姐送我一本书.

This book is not available here.───这里没有这本书.

This book is by John, Jones, et al.───这本书的作者是约翰 、 琼斯等人.

As it happens, I have left the book at home.───我碰巧把书忘在家里了.

The book will appeal to young readers.

Never judge a book by its cover.

This book is made of paper.

Writing a history book entails a lot of work.

Beware of a man of one book.