要是这种汇率在签订合约日期之后变动百分之三以上，价格须按照相应的变动调整支付。
In case of variation of such rate by more than 3 per cent after the date of this contract, the price shall be adjusted and settled according to the corresponding change.
制糖业人士抱怨称，尽管乙醇价格随全球蔗糖需求情况会上涨或下跌，但是巴西汽油价格不会随石油价格变动立刻调整。
The sugar people complain that, although the price of ethanol rises and falls with world sugar demand, petrol prices in Brazil do not adjust quickly to changes in the oil price.
一种食品价格的变动并不一定会与另一种紧密关联，因此消费者们可以灵活调整采购的商品以利用相对折价。
Changes in the prices of one are not perfectly correlated with changes in the price of the other, so consumers can adjust their purchases to take advantage of relative discounts.
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