How to pronounce 顯著 in Cantonese (5 out of 6):

唔係正面望嘅時候顏色同亮度都有顯著嘅下降
When you're not looking positive, you see a significant decrease in color and brightness.

Cantonese Sentence Breakdown

唔係 m4 hai6
(phrase
adverb
noun) no, not.
正面 zeng3 min6
positive
mong6
hope
expectate
gaze
koi3
indignant
generous
to sigh (with emotion)
時候 si4 hau6
time
顏色 ngaan4 sik1
(slang) someone's ability or captivity
tung4
and
亮度 loeng6 dou6
brightness
dou1
all
both
entirely
(used for emphasis) even
already
(not) at all
metropolis
capital
big city
the whole
elegant
refined
without exception
also
too
still
used in a sentence to add an inference or interrogative tone
jau6
also
again
顯著 hin2 zoek6
Noticeable
下降 haa6 gong3
(verb) Descend; (adjective) 1. Descending