嗅觉有助于推动大脑进化

短语讲解：

1. Scientists aren’t sure exactly why, but new research published this week in the journal Science suggests it might have something to do with mammals’ acute sense of smell.

have something to do with与…有关系
例句：Her diligence must have something to do with his success.
她的勤勉和她的成功一定有某些关系。
sense of smell嗅觉

2. “In this study we have found that the large brain is becoming larger primarily because the olfactory, or the smelling part of the brain, become very big and also the part related to skin tactile sensation also becomes big.”

relate to 将…与…联系起来, 使与…相结合
例句：We must relate these principles to our everyday work.
我们必须把这些原则和我们的日常工作联系起来。

3. “So the new evolutionary biology idea from this study of fossils is, maybe, a capacity to smell very well is as important, even more important than hearing and that the tactile sense probably played a big role too.”

tactile sense 触觉
例句：Touch each object you want to touch as if tomorrow your tactile sense would fail .
摸摸你想要抚摸的所有东西，仿如明天你将失去触觉。
play a role起作用
例句：Woman used to play a passive role in a marriage.
妇女过去在婚姻中常常扮演顺从被动的角色。

4. “Hadrocodium has this big head, small mammal, relative to the body size, it has already achieved about the same range of brain size as modern mammals.”

relative to 关于…的, 和…比较起来
例句：These are the facts relative to the problem.
这些都是与这问题有关的事实。

5. Luo was thrilled to see this impressive brain development in our 190-million-year-old mammalian relatives.

be thrilled to很高兴
例句：He must be thrilled to bits about that.
他一定是高兴极了。