The law of supply and demand governs the prices of goods.

供求规律决定商品的价格.

辞典例句

It depends on the law of supply and demand.

其取决于供需关系法则.

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Do you know the law of supply and demand.

你知道供应和需求的原理.

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Prices are regulated by the law of supply and demand in a free market.

自由市场的物价由供求关系规律来调节.

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