求翻译：而且国际贸易无法真正实现一手交钱一手交货 ， 即使货运单据代表了货物所有权 ， 但毕竟单据还不是货物 ， 所以每一种支付方式都有风险是什么意思？

And international trade can not really cold number-crunching, even if the shipping documents on behalf of the ownership of the goods, but after all the documents is not the goods, so every method of payment is risky

But international trade could not be true for the money to deliver freight documents, even if the ownership of the goods, but, after all, documents are not goods, so that each form of payment are at risk

Moreover the international trade is unable to realize one to make a payment truly a delivery, even if the shipping document has represented the cargo property rights, but the documentary evidence is not a cargo after all, therefore each payment way all has the risk

And international trade could not be truly paid delivery, even if the shipping documents on behalf of the ownership of goods, but after all the documents are not goods, so each payment method has risks

正在翻译，请等待...