Worked example: from a Chengdu article to review
The interactive Chengdu article above is a real Rolko page-text demo, not a screenshot of a hypothetical popup.
Open normal webpage text
The demo exposes a selectable Chinese article through the same page-text interaction used by the extension.
Inspect 街头巷尾
Open the real word panel to see “jiētóu xiàngwěi” and its contextual English dictionary meaning.
Set a vocabulary state
With a signed-in account and a plan that permits new-word saving, mark the word Learning or Learned.
Reuse it later
The saved state belongs to the same vocabulary and spaced-repetition flow used by supported subtitles and imported text.