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

湯金·札比宣布自護共和國改為自護公國
Tōkyū Sāpai announced the transformation of the self-defending Republic into a self-defending principality.

Cantonese Sentence Breakdown

tong3
an alternative form for 燙, scald
gam1
gold
chemical element Au
generic term for lustrous and ductile metals
money
golden
highly respected
one of the eight ancient musical instruments 八音bāyīn [八音]
wealth
weapons
precious
excellent
durable
name of a dynasty
a surname
KangXi radical 167
a match
light
flame
zaat3
thin piece of wood used a writing tablet (in ancient China)
a kind of official document (in former times)
letter
note
correspondence
early death
to fasten
bei3
close
recent
until
till
to stand close together
to cling to
to collude with
宣布 syun1 bou6
announce
zi6
from
self
oneself
since
private
personal
naturally
natural
since
wu6
to protect
to harbour
to take sides
共和國 gung6 wo4 gwok3
republic
改為 goi2 wai4
change to
公國 gung1 gwok3
duchy