How to pronounce 路基 in Cantonese (4 out of 6):

是「石路基」20号
It's the number 20 of Stonehenge.

Cantonese Sentence Breakdown

si6
is
sek6
rock
stone
stone inscription
one of the eight ancient musical instruments 八音bāyīn [八音]
mineral elements in medicine
a surname
stone made-
unproductive
mineral
KangXi radical 112
路基 lou6 gei1
roadbed; subgrade
hou6
number