英语翻译我们只能说在理论上转基因食品存在危害,可能含有毒物质、引起各种病症、引起食物营养结构失衡,造成大范围内的基因污染等等

what i can only say is the genetically modified food is harmful in theory,and it may contain toxic substances, cause various diseases,and give rise to imbalance in food nutrition structure ,.leading a large scale of genetic pollution etc.

　　Only from the perspective of theory, we can say that GM foods are dangerous, which may contain toxic components, bring about various diseases, cause the imbalance of nutrition intake from diet and lead to widespread genetic pollution.

We can only say that in theory there is harm of genetically modified food,may contain toxic substances,caused by various diseases,cause food nutrition structure imbalance,cause genetic pollution over ...