Instead of crossing a few plants together to try for a new variety, Borlaug crossed thousands and thousands, using crop types from all over the world.

是仅仅将少数植物杂交到一起尝试新品种，博洛格使用来自世界作物类型杂交了成千上万种作物。

As we've said before, the experience is different in all these different slave societies based on, you know, who the mother country is, what the dominant religion is, the way slavery develops, the crops involved.

正如我们之前所提到，基于母国、主流宗教差异、奴隶制度发展方式以及所涉及农作物类型，这奴隶社会经历有特点。

Will evolve in a similar manner their form depending on the crop concern and its location which could be a field a vineyard or an orchard.

将会根据作物类型及其位置以类似方式进化其形态，这位置可能是田、葡萄园或果园。

Over the last century, across many countries and many different crop types, crop yields have skyrocketed.

在过去一个世纪里， 许多国家种作物类型，产量都大幅飙升。