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

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 a large area and so on