"The prediction is that in the next 20 years to 30 years, if the situation continues to get worse, the productivity from the agricultural sector and from subsistence farming in Africa, the production would reduce by as much as 50 percent,".

VOA: standard.2010.01.02

They have an agricultural revolution, investment in commercialized agriculture, and increase in the production in rural areas.

英国也进行了农业革命,他们还对商品化的农作物进行投资,使得乡村地区的产量有了很大的提高

耶鲁公开课 - 欧洲文明课程节选

They have an agricultural revolution, investment in commercialized agriculture, and increase in the production in rural areas.

英国也进行了农业革命,他们还对商品化的农作物进行投资,使得乡村地区的产量有了很大的提高

耶鲁公开课 - 欧洲文明课程节选