For another, online commodities tend to be cheaper than their counterparts because the cost of online store is usually lower than a conventional one.

另一方面，网上商品往往比同类产品便宜，因为网上商店的成本通常比传统商店要低。

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Finally, Dominion shares are cheaper than those of other utilities now, with a price earnings ratio much lower than its shares normally trade.

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The firm says electric trains powered by overhead cables are cheaper to run than diesels because of lower fuel and maintenance costs.

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Thin film cells while cheaper are generally less efficient than polysilicon cells but have lower production costs, making them more attractive from a financial perspective.

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