How much money can you save if you buy an e-book of The London Eye Mystery instead of a hardcover of it?

如果你买的是《伦敦眼之谜》电子书而不是精装本，你能省下多少钱？

youdao

How much money can you save if you buy an e-book of The London Eye Mystery instead of a hardcover of it?

如果你买的是《伦敦眼之谜》电子书而不是精装本，你能省下多少钱？

youdao