我係大女鄭瑤
I'm the eldest daughter Zheng Yao

Cantonese Sentence Breakdown

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
大女 daai6 neoi5
eldest sister
鄭 zing6
Zheng state during the Warring States period
surname Zheng
abbr. for 郑州Zhèngzhōu [郑州]
serious
solemn
attentive
earnest
瑤 jiu4
jade
precious stone
mother-of-pearl
nacre
precious
used a complementary honorific
white like jade
esteemed
mythical
of immortals
name of an ethnic group