### Chinese: 正版书籍，出版社直供，开具正规的电子发票，有问题随时联系在线客服！
### English: Original books, directly supplied by publishers, issued formal electronic invoices, have problems contact online customer service at any time!
### Errors: There is a minor error at "issued formal". There is a minor error at "ces". There is a major error at "have problems contact". There is a minor error at "any".

### Improved English: Authentic books directly provided by publishing house, official electronic invoice available, please contact online customer service if you have any question!