Composite faces consisting of two right or two left sides look very different.由两张左脸和两张右脸合成出来的脸，看上去非常不同

consist of:由 ... 组成

A week consist of seven days.

一星期由七天组成。

Daniel Mills wanted to find out if dogs used the same trick to read human faces.丹尼尔·米尔斯想要找出狗是不是使用同样的诀窍分析人脸

find out:发现；找出；揭发出来

You can find out many advantages in urban life.

你会发现都市生活中有许多便利之处。

I am trying to find out experience in teaching.

我在摸索教学经验。

we thought was fairly unique to people until we started looking at dogs.我们曾以为这是人类的独有技能直到我们开始盯着狗狗

unique to:只有 ... 才有的

The ancient garden in China is unique to the world.

中国古代的园林是世界独有的。

The koala is unique to Australia.

树袋熊是澳大利亚独有的。