第一部分原句

15'

第二部分原句

19'

整句原句

23'

and that may be because

18'

because man and man's best friend...

41'

慢速

6'

正常

3'

第二部分
use analogous brain regions

21'

to process voices

17'

慢速

6'

正常

3'

整句

慢速

9'

正常

6'