and the puzzle is

这个难题是
there are some ways in which babies are--

当提及与人类有关的知识时
not just babies,but young children are very clueless

婴儿甚至是幼儿
when it comes to people.

在某些方面都是完全不知的
And so, I have a film clip here of two very nice studies

我给大家放两个优秀实验的电影片段
showing babies' ignorant--sorry, young children's ignorance of other people.

这个影片表明了幼儿对他人的无知
I'll show you the studies

先展示试验
and then we'll briefly discuss what they mean.

然后再来简单讨论下实验的意义
Before discussing that example in a little bit more detail,

在详细讨论这个例子之前
any questions?

大家有什么问题吗
What are your questions? Yes, in back.

你们的问题是什么后面那位同学
Typically--I don't know for those particular children,

我不太了解那些特定儿童的情况