You only need to scan the book's shape code. Then the app tells you information about the book.

你只需扫描书的条码，这款app便会为你提供这本书的相关信息。

youdao

You only need to scan the book's shape code. Then the app tells you information about the book.

你只需扫描书的条码，这款app便会为你提供这本书的相关信息。

youdao