Agricultural societies cannot exist without staple crops.
农业社会的存在离不开主粮作物。
2
Dutch agriculture was modernized and commercialized new crops and agricultural techniques raised levels of production so that they were in line with market demands.
荷兰的农业实现了现代化，新型的商业化农作物和农业技术提高了农产量，使之能够满足市场的需求。
3
Many crops were developed during the agricultural revolution when human societies made the transition from nomadic hunter-gatherers to horticulture and agriculture.