The sharp rise in costs - up about 23-25 per cent from the first quarter, according to analyst estimates - will add to concerns about inflation as oil and food prices are also rising rapidly.

随着石油和食品价格也在迅速上涨，铁矿石成本的大幅上涨——据分析师估计，将较第一季度上涨约23% - 25%——将加大通胀担忧。

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According to analyst estimates, sales for the January-to-February period will fall 3% from the same months in 2011.

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According to the estimates of Citigroup analyst Mark Mahaney, Amazon sold 500, 000 of the first-generation devices, outpacing any other device in the budding market for digital reader.

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According to estimates by Dilip Warrier, an analyst at investment bank Stifel Financial Corp.

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