通过支付交换货物或服务。the sale of goods or services in exchange for payment;
贸易合同涉及货物或服务，价格和支付条款。a contractual agreement regarding the description of the goods or services, the price and the terms of payment;
货物或服务传递。the delivery of goods or services.
卖家先发货后付款的风险。The seller is still exposed to the risk of non‑payment if they deliver before payment.
买家预付款后的风险。The buyer is exposed to the risk of loss if they pay for goods in advance of delivery.
不同点-Differences
国际贸易的贸易链条远长于国内贸易。The end‑to‑end trade cycle is usually much longer due to longer transit times and pre‑shipment lead times.
托运尺寸和价值受规模经济如集装箱和海运的影响。Consignment sizes and values tend to be higher due to the economies of scale associated with containerisation and sea freight.
远距离和运输模式增加货物存储和发放的难度。Control over the secure storage and release of goods may be more difficult due to the distances involved coupled with the mode of transport.
时差、语言以及地域习俗会为增加解决问题的难度。Resolution of problems may take longer and be more difficult due to time zone, language and local practice differences.