Question

what contrast is implied by the use of the word 'still' in 'still young, still beautiful, still charming' ?

Answer 1

Answer:

its used to tell a person you've known from before that whether then or now, they still hold the quality they used to have before too.

Explanation:

if you tell someone, "you are still beautiful" it is a contrast between present and past, like, you were beautiful and you are still beautiful.

Answer 2

Answer:

It means that Mathilde looked old after ten years, while Madame Forestier looked young, beautiful and charming even after ten years.