


Swimming Pool Episode (1973)
Sex & Zen II (1996)
Yu Pui Tsuen III (1996)
Midnight Shout (1998)
Change (1998)
Lipstick and Woman (1998)
The Recreant Teenager (2002)
Barbarity (2003)
The portraits are from the movies "Midnight Shout", "Lipstick and Woman" and "Change", they show the same actress, so although I can't say for sure that the ID is correct (2 out of 3 of these movies I found were without acting credits), but let's say that it's correct, and this is really ?? that appears in these movies.
But ?? that is credited in "Sex & Zen II", "Yu Pui Tsuen III" and "The Recreant Teenager" is a different ??, and it's actually an alias for Christine Hung (???):

If you check the credits of "Sex & Zen II" and "Yu Pui Tsuen III" there is no ???, only ??. Again, probably an editor/s, who knew Christine Hung just identified her from both movies and added her to the cast lists, while ?? was added from the credits.
I tried to spot ?? in "Barbarity", but the role is very small, shot in the dark, in motion and with some tragic expression, so I couldn't really identify her. It can be any woman.
"Swimming Pool Episode" is from 1973, and judging from the role of ?? - it is probably a kid, so it can be any of ?? we already have, or any other girl who had/was credited by this name. I couldn't find a copy of the movie, so there are no hints.
So I think we should split the current entry of Fong Ting (2) to 4 different people:
1) "Midnight Shout", "Lipstick and Woman", "Change"
2) Add ?? as an alias to Christine Hung, add "The Recreant Teenager" to her page, and remove ?? from the pages of "Sex & Zen II" and "Yu Pui Tsuen III"
3) "Barbarity"
4) "Swimming Pool Episode"