Did the shortage and high cost of labour change farming practice and push technology?

是劳动力的缺乏及其高成本改变了农业耕作方式并推动了技术革新吗？

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Children come in contact with high levels of pesticides through farming.

儿童在耕作中会接触到高浓度农药。

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Children come in contact with high levels of pesticides through farming.

儿童在耕作中会接触到高浓度农药。

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