### 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: Genuine books, direct supply by publishing houses, issuing formal electronic invoices. If you have any questions, feel free to contact online customer service!
### Errors: There is a major error of incorrect translation is missing content from the correct translation at "issuing formal electronic invoices". There is a minor error of incorrect translation has stylistic problems at "Genuine books, direct supply by publishing houses,".

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