Professor Valter Longo
费尔特·隆戈教授
studies the complex mechanisms which control ageing.
致力于研究造成衰老的复杂机制
He's honed in on a critical pathway
他所进行的重要研究是
that links what we eat with how we age.
饮食结构与衰老方式之间的联系
He's taking me to see two mice.
他要带我去看两只小鼠
They are both the same age, same species, same sex.
它们同龄 同类并且同性
But there's one significant difference between them.
但是它们之间存在一个很大的差别
The little one is going to be living an awful lot longer
这只小个的会比这只大个的
than the big one.
活得长很多
This little mouse right here
这个小家伙保持着
holds the world record for longevity extension in a mammal.
哺乳动物中延长寿命的世界纪录
Oh, right. That is remarkable.
真是不可思议
So, how long would these subspecies of mice last?
那这些小鼠能活多久呢
The big mouse here, about two years,
这只大的大概能活两年
and the little mouse, about a 40% longer lifespan.
这只小的能比它长寿40%
Right. They're very different, aren't they?
它们之间的差别很大 不是吗
Whoa! He is trying to bite me.
它要咬我

重点解释：

1.world record 世界记录

例句：She's going for the world record in the high jump.
她想创造跳高世界纪录。

2.try to 尽力, 试图

例句：Do not try to cover a mistake.
不要试图掩盖错误。