Chris Rufer: The price of tomatoes has kept up with alternative crop profitability.

答：番茄的价格保持着与其替代作物同样的盈利能力。

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Production is still very limited, but there is considerable interest in exploring the potential of crawfish farming as an alternative crop.

尽管产量十分有限，但把小龙虾养殖作为一种可替代作物来开发其潜力具有相当大的收益。

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Developing a new variety that could be cultivated in the United States would reduce American dependence on foreign products while creating a new alternative crop for American farmers.

开发出一种能够在美国栽培的新品种将减少美国对外来产品的依赖性，而且也会提供给美国农民一种新的可选择性作物。

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Alternative livelihoods such as ecotourism and fish farming could provide an alternative to intensive crop farming, while better management of crops and irrigation and the adoption of alternative energy sources such as solar power would all contribute to environmental sustainability.

CNN: Growing deserts 'a global problem'

Huge stock trading volume spikes in the last couple of days have been a boon not only to the exchanges but to the new crop of alternative trading sites that have been trying to siphon market share away from them.

FORBES: Crank Up The Volume

In America, alternative tournaments are already beginning to crop up, like one in South Carolina called the Pro's 10s Circuit.

WSJ: Is Tennis Getting Too Soft?