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But opponents of GM food –people who argue against it – say we don’t know enough about its effect on the environment. 
但是，转基因食物的反对者们——那些反对对自然生物进行人工基因改良的人们——说我们对于转基因食物对环境影响的了解还太少。
And then there are the fears about who controls what’s grown. 
还有一些人担心我们无法控制转基因作物的生长。
Yes, but despite this, GM food has become an important part of food production. Crops like sweetcorn, rape plants, wheat and tomatoes have all been genetically modified. 
是的，但是不管怎么说，转基因食物已经成为了粮食产量的一个重要组成部分。像甜玉米、油菜、小麦和番茄等作物都进行过基因改良。
Yes, like the purple tomato, which was recently developed in the UK. It has a dark pigment – or colour –which gives it the same potential health benefits as blueberries. 
是的，就像紫色的番茄，就是英国科学家最新研究出来的品种。它的颜色偏深，和蓝莓一样能给人体提供一些养分。
Well, that sounds like a good thing. And not only that, it has an antioxidant – that’s a substance that stops the decaying process – which tests show could help fight cancer. 
是的，这听起来不错。还不只这些呢，它还含有抗氧化剂——一种可以延缓腐败的物质——经实验发现可以它帮助人体抵抗癌症。
One day we could see these purple tomatoes on pizzas or in our tomato ketchup.Let’s hear from Professor Cathie Martin who is a plant biologist from The John Innes Centre who developed this tomato. What does she say is good about this new food? 
或许有一天我们就能在披萨或者番茄酱里面看到这些紫色的番茄了。下面让我们来听听培育出这种番茄的来自约翰英尼斯中心的生物学家Cathie Martin教授是怎么说的。看看她对于这种新食物的优点是怎么评价的？
With these purple tomatoes, you can get the same compounds that are present in blueberries and cranberries that give them their health benefits but you can apply them to foods that people actually eat in significant amounts and that are reasonably affordable. 
食用这种紫色的番茄，人们可以获取到一些对人体很有好处的物质，这些物质在蓝莓以及越橘也都含有，但是人们只能大量食用才行。
So she says the good thing about this development is we can get health benefits from something we eat significant amounts of –so lots of –and they will be reasonably affordable – so it will be cheap. 
所以她说这种紫色番茄的好处就是我们可以不用大量食用某些食物就可以获取到某些营养成分——含有相同物质的食物我们要吃很多才行——而且价格也是人们能够接受的——意思就是会很便宜。
Yes but there’s still maybe a problem with the colour. We are affected by the colour of stuff we put in our mouths. I mean, who eats blue food?! 
但是关于颜色可能还是有些问题。送进嘴里的食物的颜色会影响我们。我的意思是，谁会吃蓝色的食物啊？！
That’s true. And also because the European Union has restrictions on growing GM food, this tomato has to be grown in Canada where rules are more supportive of GM foods. 
这倒是真的。还有一个问题就是欧盟禁止种植转基因作物，我们只能在加拿大——这里的法规相对来说更加支持转基因食物——种植才行。
OK. Well, Professor Nick Pidgeon, who is an Environmental Psychologist, says in the UK there is some distrust of GM food. 

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