translation.en: From there, the greatest innovation of all came about in this market, which is that buyers and sellers could transact grain without actually having to physically or visually inspect the grain.
translation.zh: 从这里开始，市场最伟大的创新出现了， 买家和卖家不需要亲身出现，不需要亲眼监督， 也能够进行谷物买卖。