He replaced a portion of a rabbit's upper arm joint with a biomaterial scaffold, providing a place for cells to grow.

VOA: standard.2010.08.11

The second part is after he's been conditioned and he's kind of freaked out with the white rabbit.

但在他形成了条件作用之后,他对小白兔也产生了恐惧。

耶鲁公开课 - 心理学导论课程节选

The problem is in the second part they're throwing the rabbit at him but now he's okay.

问题是，在第二段影片中,他们是把小白兔扔过去的,不过，现在他已经不害怕了。

耶鲁公开课 - 心理学导论课程节选

In order to attract the rabbit's own stem cells to re-grow the cartilage, channels in the scaffold were filled with a growth factor protein.

VOA: standard.2010.08.11

So, the first part, Little Albert's fine with the white rabbit.

起先，小阿尔伯特并不害怕小白兔。

耶鲁公开课 - 心理学导论课程节选

When the mechanical properties of this new cartilage were tested, they showed that the regenerated cells were just as effective as the rabbit's naturally formed cartilage.

VOA: standard.2010.08.11