Thousands of years of selective breeding have produced extensive genetic changes in the plants and animals we eat, not all of them good.

数千年的选择性培育已经造成了食用植物和动物广泛的基因改变，并非所有的改变都是好的。

youdao

Businesspeople, scientists, and farmers hope that transgenic techniques will help cultivate more cost-effective plants and animals that are not available with the use of current breeding technology.

商界、科学家和农民都希望转基因的技术能够培育出更多具有价格优势，而且是现今的培育技术无法培育的动植物。

youdao

The characteristic feature of the period of barbarism is the domestication and breeding of animals and the cultivation of plants.

野蛮时代的特有的标志，是动物的驯养、繁殖和植物的种植。

youdao

Isolated populations of plants and animals could establish genetic contact with larger communities, creating healthier and more resilient breeding pools.

BBC: Florida��s newest wildlife refuge