How to pronounce 告密者 in Cantonese (2 out of 3):

以防止佢哋成為告密者
To prevent them from becoming whistleblowers.

Cantonese Sentence Breakdown

以防 jai5 fong4
to prevent
zi2
to stop
to prohibit
until
only
demeanor
appearance
stature
to halt
to stop over
to rest in
to arrive
still
stagnant
calm
an alternative form for 趾, toe
佢哋 keoi5 dei6
(pronoun) they
成為 sing4 wai2
become
告密者 gou3 mat6 ze2
informant