JACK: What do you think of the traffic-light system?

杰克：你觉得交通信号灯系统怎么样？

ALICE: I think supermarkets like the idea of having a colour-coded system - red, orange or green - for levels of fat, sugar and salt in a product.

爱丽丝：我认为超市喜欢用颜色编码系统--红色、橙色或绿色--来表示产品中脂肪、糖和盐的含量。

JACK: But it's not been adopted universally.

杰克：但它并没有被普遍采用。

And not on all products.

并不是所有的产品都使用了。

Why do you suppose that is?

你觉得为什么会那样呢？

ALICE: Pressure from the food manufacturers.

爱丽丝：来自于食物生产商的压力。

Hardly surprising that some of them are opposed to flagging up how unhealthy their products are.

毫不奇怪，他们中的一些人反对让大家关注他们的产品有多不健康。

JACK: I'd have thought it would have been compulsory.

杰克：我本来以为这是强制性的

It seems ridiculous it isn't.

不是强制性的看起来很荒谬。

ALICE: I know. And what I couldn't get over is the fact that it was brought in without enough consultation - a lot of experts had deep reservations about it.

爱丽丝：我知道。我不能理解的是没有经过足够的商讨，它就被引入使用了。很多专家对此持保留意见。

JACK: That is a bit weird.

杰克：那是有点奇怪。

I suppose there's an argument for doing the research now when consumers are familiar with this system.

我觉得做这个研究可能有点争议，因为消费者已经熟悉了这个系统。

ALICE: Yeah, maybe.

爱丽丝：恩，可能是吧。

JACK: The participants in the survey were quite positive about the traffic-light system.

杰克：调查里的参与者对交通信号系统表现得非常积极。

ALICE: Mmm. But I don't think they targeted the right people.

爱丽丝：恩。但是我觉得他们没有针对正确的人群。

They should have focused on people with low literacy levels because these labels are designed to be accessible to them.

他们应该侧重于文化水平不高的人，因为这些标签是为了方便他们而设计的。

JACK: Yeah. But it's good to get feedback from all socio-economic groups.

杰克：是的。但是如果能从所有的社会经济群体收集反馈是很好的。

And there wasn't much variation in their responses.

而且他们的回答差别不大。

ALICE: No. But if they hadn't interviewed participants face-to-face, they could have used a much bigger sample size.

爱丽丝：是的。但是如果他们没有面对面采访参与者，他们本可以使用更大的样本量。

I wonder why they chose that method?

我在想他们为什么选择那种方法？

JACK: Dunno. How were they selected?

杰克：不知道。参与者是怎么选择的？

Did they volunteer or were they approached?

他们是主动参与还是被动的呢？

ALICE: I think they volunteered.

爱丽丝：我觉得是他们主动的。

The thing that wasn't stated was how often they bought packaged food - all we know is how frequently they used the supermarket.

不是很明白的一点就是他们多久买一次包装食物，我们所知道的是他们多久去一次超市。