Sang cash crops, tea, cotton, sugar cane, tobacco, planted area expanded, was already become a commodity.

经济作物桑、茶、棉花、甘蔗、烟草，种植面积扩大了，当时已经成为商品。

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Production of cowpeas grew by more than 250 percent during the 1970s, while the area planted expanded by almost 70 percent.

在七十年代中，豇豆的生产增长了25%以上，而种植面积几乎扩大了70%。

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