黃泛區

Huang He Inundated Area, the area flooded in 1938 when dikes along the Yellow River were destroyed in an attempt to halt the advance of Japanese troops / (historically) Huang He floodable area

red-light district

variant of 泛[fan4]

variant of 泛[fan4]

(bound form) general / non-specific / extensive / pan- / to flood / (literary) to float about / to be suffused with (a color, emotion, odor etc)

surname Ou

area / region / district / small / distinguish / CL:個|个[ge4]

yellow / pornographic / to fall through