A hedge contract cannot guarantee a manufacturer against loss but it can restrict his loss within very narrow limits by averaging out the cost of his raw materials for many months ahead.

套头交易不能担保厂商避免损失，但由于能提前数月算出原料成本，因而可以把厂商的损失限制在极小的范围之内。

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The average cost for a transplant in Brazil is US$27,000, with living donor transplants averaging US$32,000 dollars.

在巴西移植的平均费用为27000美元，活供体移植的平均费用为32000美元。

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Now what I do recommend, instead of trying to time the market, is so-called dollar-cost averaging.

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The strategy works well inside 401(k)s and other retirement plans because of dollar cost averaging (DCA).

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Without knowledge of the future, I can reduce my pricing risk by dollar-cost averaging my investment.

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