How to pronounce 黃瓜 in Cantonese (6 out of 7):

黃瓜嘅皮都有清熱嘅功效
Old fools have a very hot skin.

Cantonese Sentence Breakdown

lou5
prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity
old (of people)
venerable (person)
experienced
of long standing
always
all the time
of the past
very
outdated
(of meat etc) tough
old age
abbreviation for Laotse, the founder of Taoism
a surname
to retire from official service
to become old
to honor the aged
shameless, thick-skinned
familiar term of respect for elderly people
decrepit
hardened
steady
trustworthy
dark
deep (colour)
youngest (in Beijing dialect)
parents
黃瓜 wong4 gwa1
cucumber
koi3
indignant
generous
to sigh (with emotion)
pei2
skin goods, hide
fur
leather
fur coat
capital
overheads
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
清熱 cing1 jit6
clearing heat
功效 gung1 haau6
effectiveness