二书是指《住宅质量保证书》和《住宅使用说明书》。

Second book" refers to the "Residential Quality Guarantee" and "Residential Manual.

youdao

全部产品都有国际认可的产品质量保证书，优质的产品会让客户满意和放心。

All products are internationally recognized quality assurance of the products, high-quality products and customer satisfaction will be assured.

youdao

两本书“是”住宅质量保证书“和”住宅手册。

Two books "is a" Residential Quality Guarantee "and" Residential Manual.

youdao