某一商品在现下所处时间或时间段内的的价格
而多数规模化养殖户仍然依据当期价格决定下一期的饲养数量，这也是造成生猪价格波动的主要原因。
For free-range farmers, the factors that affect their breeding pigs are net income, farmland size, the quantity of family labor.
当他们的预报从寒流变成暖流，可以说会使燃气远期价格陷入巨大的混乱之中。
When their predictions turn from cold snap to heat wave, say, it can play havoc with the forward price of gas.
这是一个理智的决定作出，特别是当他们预期价格将继续上升一段时间。
It was a rational decision to make, particularly when they expected prices to continue to rise over time.
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