III.Translate the following short paragraphs into Chinese. 1.When the purchase order of the buyer and the sales order of the seller agree, the orders become a contract between the buyer and the seller. While the purchase order authorizes the sale of products, the sales order confirms the sale of goods. The two documents are widely used by the manufacturers, wholesalers, suppliers and retailers all around the world. 2.Shipment covers a rather wide range of work, such as booking shipping space, chartering ship, making the customs declaration, etc.. The shipment Clause is an integral and important part of a contract signed between the importer and the exporter. It involves the time of shipment, the port of loading and destination, means of conveyance, the shipping documents, etc..