To feed the seven billion people on Earth, most farmers today are growing only species of plants and farming only species of animals that are easy to produce in large numbers.

为了养活地球上70亿人，今天的大多数农民只种植或养殖易于大量生产的植物和动物。

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More irrigation works would have to be built to feed the growing population, and this resulted in more power and wealth for the elite.

国家必须修建更多的灌溉工程来养活不断增长的人口，这为精英阶层带来了更多的权力和财富。

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We need more food to feed the world's growing population.

我们需要更多的食物来养活世界上不断增长的人口。

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But Wally Stevens of the trade group Global Aquaculture Alliance says the industry must continue developing to feed growing populations.

VOA: special.2011.02.08

Scientists are using biotechnology as well as traditional breeding methods to develop water-saving crops to feed a growing world.

VOA: special.2009.03.23

It says the world also needs to develop better farming methods to feed growing populations in poor countries.

VOA: special.2010.01.05

Growing crops to feed animals requires a lot more land, energy and fertilizer than growing them to feed people, he says: 70% of the land that was once Amazon rain forest is dedicated to grazing.

FORBES: Technology

As a result, he said the company was now looking towards imports of liquefied natural gas (LNG) from other countries to feed growing domestic Brazilian demand.

BBC: NEWS | Business | Petrobras scraps Bolivia project

British settlers arrived in 1788, needing to feed a growing penal settlement to the south at Sydney Cove.

BBC: A wild river valley outside of Sydney