“保证书”造句

这份保证书有效期为一年.
This guarantee is valid for one year.

本保证书自购置此产品之日起有效期为一年.
This warranty is good for one year after the date of the purchase of the product.

你需要发一份保证书到你办公室?
Do you want that confirmation sent to your office or your mansion?

• #保证书