There are explanatory notes at the back of the book.

书后有注解。

The index at the back of the book lists both brand and generic names.

书末尾的索引把商标名和通用名都列了出来。

Are there any explanatory notes at the back of the book?

书后面有注解吗？

He checked his answers with those at the back of the book.

他把自己的答案与书后的答案核对了一下。

Please check your answers with those in the back of the book.

请将你的答案与书后的答案核对一下。