求翻译：目前，转基因食品已经越来越受到大众的喜爱，一方面，转基因食品的有较多的优点可使农作物开发的时间大为缩短；可以摆脱四季低成本供应；不断培植新物种，生产出有利于人类健康的食品。另一方面，其潜在的风险，首先是毒性问题。一些研究学者认为，对于基因的人工提炼和添加，积聚了食物中原有的微量毒素。　其次是过敏反应问题。对于一种食物过敏的人有时还会对一种以前他们不过敏的食物产生过敏，第三是营养问题。科学家们认为外来基因会以一种人们目前还不甚了解的方式破坏食物中的营养成分。总的来说，转基因食品的发展前景还是很广阔的，在以后的发展中，不断优化，不断进步是什么意思？

At present, the favorite of genetically modified foods have more and more popular, on the one hand, have more advantages of genetically modified food crops development time is greatly shortened; can get out of the four seasons and low-cost supply; constantly cultivating new species to produce food in favour of human health. The other hand, the potential risks, first is the toxicity issues.　Some researchers believe that for artificial refining and adding gene, trace amounts of toxins accumulated food already. Followed by allergy problems. For a food-allergic people and sometimes also be allergic to a previously they did not produce allergies to food, the third is the nutrition. Scientists believe the foreign genes in a way people currently do not know much about the destruction of food nutrients. In General, is still very broad prospects of development of genetically modified food, in later development, optimize, and progress