How to pronounce 變異 in Cantonese (6 out of 9):

第 2, 變異
And second, the difference.

Cantonese Sentence Breakdown

dai6
(prefix indicating ordinal number, e.g. first, number two etc)
order
(old) rank in the imperial examinations
mansion
(lit.) but
just
sequence
number
grade
degree
變異 bin3 jik6
mutation