Bill : Scientific advances have enabled food producers to alter the genetic make-up of many common foods.比尔：科学的发展使得食品生产商们能够改变很多普通食物的基因构成。
Broccoli has anti-cancer properties but an Institute of Food Research study has found some people's genetic make-up may 花椰菜有抗癌成分，但是食品研究中心的研究发现，有些人的基因构造可能会减少摄取的保护效果。