原文：目前，农业科技在中国农业增产中的贡献率约为35%，世界上农业发达国家在60%以上。译文：At present, the contribution made by science and technology to agriculture accounts for about 35 percent of the agricultural production increase, while the agriculturally advanced countries exceed 60 percent.
改译：At present, the contribution made by science and technology to agriculture accounts for about 35 percent of the agricultural production increase, while it exceeds 60 percent in the agriculturally advanced countries.
