With precious metals prices up broadly , some big merchants also are attempting to contain costs by buying large amounts at a preset price, a strategy called hedging.

随着贵金属价格全面上涨，一些大商家通过以预先商定的价格大量买入黄金来遏制成本上升，这一策略被称作对冲。

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Many farmers were able to postpone cost increases through hedging strategies or by buying fertilizer, chemicals and other supplies in bulk in 2006 or 2007, when they were cheaper.

许多农民曾采取对冲策略，或在2006年和2007年趁化肥、化学品及其他农用物资较便宜之时大量买进，以此延缓农耕成本的上涨。

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Many farmers were able to postpone cost increases through hedging strategies or by buying fertilizer, chemicals and other supplies in bulk in 2006 or 2007, when they were cheaper.

许多农民曾采取对冲策略，或在2006年和2007年趁化肥、化学品及其他农用物资较便宜之时大量买进，以此延缓农耕成本的上涨。

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