关于合同2011QM0613，由于买方的原因，付款方式需要改为100%预付。特此说明的翻译：On 2011QM0613 contract, due to reasons the buyer, payment needs to 100% in advance. Hereby description 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

On the contract 2011QM0613, because the reasons for the buyer, payment needs to be changed 100% prepayment. Is noted

On 2011QM0613 contract, due to reasons the buyer, payment needs to 100% in advance. Hereby description

About contract 2011QM0613, as a result of the buyer reason, the payment method needs to change 100% prepay.Explained specially

With regard to contractual QM 0613 2011, as the buyer, payment methods need to be replaced by the 100% prepaid. This statement illustrates

On 2011QM0613 contract, due to reasons the buyer, payment needs to 100% in advance. Hereby description