原文视听

Then, for four days, they are given cooked yams to eat.
接下来的4天里 他们为小鼠提供熟番薯
The impact on their bodies is startling and immediate.
这对它们身体的影响是令人吃惊与即刻的
These mice have got activity wheels,
小鼠们都配有活动轮
which enable us to monitor how far they go every day.
我们可以借此了解它们每天行走的路程
They can go kilometres every day.
它们一天能走上千米
By the time we've totted up
当我们合计
how many wheel rotations have been conducted by each mouse,
小鼠们行走的总圈数时
then the ones that ate the cooked food went significantly further
发现比起吃生食的小鼠
than the ones that ate they raw food.
吃熟食的小鼠明显的走得更远
They had more energy and travelled further.
它们有更多的体力 因此走得更远
Although they used up so much more energy,
尽管它们消耗掉了大量体力
by the end of the four days,
4天之后的称量结果显示
the mice which ate the cooked food, did not lose weight.
吃熟食的小鼠并没有体重下降的现象
In fact, they got fatter.
实际情况是 它们还变重了
Here we're seeing that mice that eat their food cooked,
我们观测到 吃熟食的小鼠
are getting more energy than mice that eat the same food raw.
比吃同种生食的小鼠 获得了更多的能量

重点解释

which enable us to monitor how far they go every day.我们可以借此了解它们每天行走的路程

how far离 ... 多远； 到什么程度

How far does the road continue?

这条路有多长?

How far does your memory go back?

你能回忆起多久以前的事情？

By the time we've totted up当我们合计

tot up合计

Let's tot up our expenses.

咱们把费用加起来吧。

It's surprising how the bills tot up.

这帐是怎麽加在一起的，真奇怪。

Although they used up so much more energy,尽管它们消耗掉了大量体力

use up用完；耗尽

Don't use up all the soap. Leave me some to wash with.

不要把肥皂用尽，留一些给我洗。