CLARE: So can I talk through a possible procedure for the experiment where mice are given a sugar supplement?

克莱尔：那我能讨论一下小白鼠摄入糖分的可能的实验步骤吗？

JAKE: Sure. I did a similar experiment in college actually.

杰克：当然，我大学时做过一次类似的实验。

CLARE: Great. So how many mice would I need?

克莱尔：太好了。那么我需要多少只小白鼠？

JAKE: I'd say about 12. And all young ones, not a mixture of old and young.

杰克：大概12只，而且都是年轻的，不能老的和年轻的混合。

CLARE: OK. And I'd need two groups of equal sizes, so six in each group. And how would I tell them apart?

克莱尔：好的。我需要两组小白鼠，每组6只。那我要怎么区分它们呢？

I suppose I could put some sort of tag on one group . . . or just mark them in some way?

我想我可以给其中一组贴上标签，或者用某种方式标记？

JAKE: You could use food colouring, that wouldn't hurt them.

杰克：你可以用食用色素，这不会伤害他们。

CLARE: Perfect. Then each group would go into a separate cage, and one group, let's call them group A, would be the control group.

克莱尔：太好了。然后每组关在一个单独的笼子里 其中一组，我们叫它A组，作为对照组。

So they'd just have ordinary mouse food. I suppose you can buy that?

他们只吃普通的老鼠食物，你能买到吗？

JAKE: Yes, it comes in dry pellets.

杰克：可以，有干的颗粒。

CLARE: And the other group would have the same as the first group, but they'd also have the extra sugar.

克莱尔：另一组的食物和第一组一样，但有额外的糖。

JAKE: Would you just give them straight sugar?

杰克：你会直接给它们糖吃吗？

CLARE: It might be better to give them something like cereal with it.

克莱尔：也许给他们一些像麦片之类的东西会更好。

JAKE: Mmm. Then you'd need to weigh the mice, I should think once a week. And you'd need an electronic balance.

杰克：嗯。然后你得给小白鼠称体重，我想应该是一周一次。你需要一个电子天平。

CLARE: But we can't hold them on the balance, or it'd affect the reading.

克莱尔: 但是我们不能抓着它们放到天平上，否则会影响读数。

JAKE: Exactly. So you need something called a weighing chamber to stop the mice from running away.

杰克：没错，所以你需要一个叫称重室的东西，来防止小白鼠逃跑。

It sounds complicated, but actually you can just use a plastic box with holes in the top.

这听起来很复杂，但实际上你可以用一个顶部有洞的塑料盒子。

CLARE: OK. So once we've measured the weight gain of each mouse we can work out the average for each group, as well as the standard deviation.

克莱尔：好的。这样一旦我们测量了每只老鼠的体重增长，我们就可以计算出每组的平均值，以及标准差。

And then see where we go from there. That sounds cool, I think the students will enjoy it.

然后看看我们接下来要做什么。听起来很酷，我想学生们会喜欢的。

JAKE: Yes. One thing . . .

杰克：是的。还有一件事……