How to pronounce 文化大革命 in Cantonese (6 out of 8):

紅衛兵, 係中國喺文化大革命時期
The Red Guards, in China during the Cultural Revolution.

Cantonese Sentence Breakdown

紅衛兵 hong2 wei4 bing1
Red Guards
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
中國 zung1 gwok3
China
hai2
in
文化大革命 man4 faa3 daai6 gaak3 ming6
Cultural Revolution
時期 si4 kei4
period of time