Price is a function of supply and demand.

价格是由供求关系决定的。

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In part, this is a simple function of supply and demand.

一部分原因可以归结为简单的供需问题。

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The fact is, hybrids simply cost a little more to repair than gas-only cars. But, the extra cost is just a function of supply and demand.

事实上，混合动力汽车只比配气动力汽车维修上稍微多花点钱，但额外费用是功能的供应和需求。

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So, is the spike in commodities strictly a function of supply and demand?

FORBES: After The Gold Rush -- Commodities Prices: Why So High?

But is the recent gyration in oil prices a function of supply and demand or is it a sudden rush in or out of commodity index funds?

FORBES: Oil and Natural Gas Part Ways

Colleges will squawk that this exercise is unfair, since a worker's income is as much a function of supply and demand or mere chance as of a sheepskin.

FORBES: Magazine Article