不如我係隻老鼠呀
I am a mouse,

Cantonese Sentence Breakdown

不如 bat1 jyu4
not as good as
我 ngo5
I
me
my
us
we
our
self
係 hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
隻 zek3
classifier for birds and certain animals, one of a pair, some utensils, vessels etc
single
alone
one only
one of pair
month (in prison sentence)
老鼠 lou5 syu2
mouse
呀 haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)