这是世界上一些主要农作物产量增长速度的下降。
This is the decline in the growth in yields of some of the world's major crops.
早在使用机械和化肥之前,勤劳和富有创造性的中国农民就已经采用各种各样的方法来增加农作物产量。
Long before the use of machinery and fertilizers, industrious and creative farmers had already used different kinds of methods to increase crop yields.
由于作为六十年来最严重干旱丝毫没有减弱的迹象,农作物产量将大幅下滑。
Crop production has fallen sharply, as the worst drought in six decades shows no sign of letting up.
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
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