期货合约是交易双方就在未来确定的时间和地点，按确定的价格交换某种商品的一种承诺。
Futures contracts are a promise between two parties to exchange a commodity at a specified time and place in the future for a stated price.
期货合约是交易双方就在未来确定的时间和地点，按确定的价格交换某种商品的一种承诺。
Futures contracts are a promise between two parties to exchange a commodity at a specified time and place in the future for a stated price.
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