Such disparities are unnecessary. Indeed, the proliferation of agricultural technology – from more efficient machinery to higher-yielding or more robust crop varieties – has the potential to narrow the productivity gap considerably, even if differences between climates and producers remain.
如此差异本可避免。事实上，农业技术——从效率更高的机械到更鲁棒的稻种——有潜力大量缩小产量差异，即便两地气候和生产者不同。