So, we are offering to send replacement books, but in view of the unreliability of the Chinese postal service, we will only send the books by guaranteed courier, for which you will have to pay.

• 所以，我们正在准备发用于替换的书给你，但是考虑到中国邮政服务的不可靠性，我们只会通过担保的快递发这本书给你，但是你必须付运费。