主持人
你学中文多久了？
Chinese vocabulary across reading, video, and review
Track Chinese vocabulary from real content, then review it
Track Chinese vocabulary from subtitles, webpages, transcripts, and text. On supported YouTube and Netflix pages, Rolko can display an available English subtitle track beneath Chinese captions. Generating a Netflix translation when no English track is available requires an active paid plan and remaining AI translation quota. Basic word lookup is free; saving new words requires a paid plan, while previously saved words remain reviewable on Free.
Start learning
The web app works in every modern browser. No extension required.
Interactive product proof
See one Chinese word move from context into review
Use the interactive transcript to inspect 学习, change its real Rolko vocabulary state, and see the shared coverage calculation update.
Reading workspace
学中文的秘诀
Tap or hover a word for its pronunciation and meaning. Mark it as learned or learning.
Word Coverage
Learned: 50%Learning: 20%New: 30%
嘉宾
大概三年了，但是每天都要练习。
主持人
有什么好的学习方法吗？
嘉宾
我觉得看中文剧最有用，边看边学。
Rolko-specific evidence
What this workflow actually supports
Last verified . Checked against Rolko’s current browser-capability gate, Chrome extension manifest 0.2.31, public routes, and shared interactive product demos.
| Surface | Current support | Important limitation |
|---|---|---|
| Desktop browser extension | Supported desktop Chromium-family browsers | The install path is not offered to Safari, Firefox, Android, or iOS. Website access is requested from a user action. |
| Mobile web app | Reading, vocabulary, and review | The watch-page and webpage-hover browser-extension workflows are desktop-only. |
| YouTube | Interactive subtitles and supported transcript import | Requires usable captions in the active study language; not every video exposes a supported transcript. |
| Netflix | Interactive subtitles on supported watch pages | Requires usable subtitles in the active study language; title and page-state support can vary. |
| Normal webpages | Selectable Chinese text | Image, canvas, protected, or unusually structured text may not be available. Rolko does not provide OCR. |
| Transcript import | Supported sources in the Rolko web app | Requires a source and transcript that Rolko can retrieve or accept. |
Worked example: from 学习 in a transcript to scheduled review
The transcript demo above uses Rolko’s shared vocabulary states and coverage calculation, so the example remains inspectable in the page HTML and UI.
Encounter the word in a line
Read “有什么好的学习方法吗？” in the interactive transcript and open 学习 in context.
Inspect and classify it
Review the pinyin and meaning, then keep the existing state or mark the word Learning or Learned.
See the coverage state change
The shared transcript coverage calculation updates from the same vocabulary state rather than a separate marketing-only counter.
Review saved vocabulary
Words kept for learning can enter Rolko’s spaced-repetition review flow alongside vocabulary from other supported surfaces.
Product workflow
Use one loop across reading, video, and review
Follow available English subtitles
Read an available English track beneath Chinese subtitles on supported YouTube and Netflix watch pages. Netflix AI translation without an English track requires an active paid plan and remaining translation quota.
Keep the few that matter
With a paid plan, save useful new words and sentence context as Learning or Learned while leaving the rest in context.
Bring them back
Review saved vocabulary with spaced repetition and keep the same word states across supported surfaces.
Continue in Rolko
Bring encountered words back in scheduled review
Words you choose to keep can enter Rolko’s spaced-repetition review flow alongside vocabulary from other supported reading and video surfaces.
Review
Vocab Review
加油
今天的比赛很重要，大家一起加油吧！
Related Rolko answers
Continue with the workflow you need
What is Rolko, and when should you use it?
Rolko is a language-learning web app and browser extension for interactive subtitles, webpage text, vocabulary tracking and spaced-repetition review.
A focused Language Reactor alternative for learning Chinese
Looking for a Language Reactor alternative focused on Chinese? Use Rolko to explore Chinese subtitles, save useful words and review them with spaced repetition.
Learn Chinese with Netflix subtitles
Learn Chinese with supported Netflix subtitles on desktop. Explore words for pinyin and meaning, save vocabulary and review it later with Rolko.
Learn Chinese with YouTube subtitles
Learn Chinese with supported YouTube subtitles. Explore words on desktop or import an available Chinese transcript into the Rolko web app.
Read Chinese webpages. Review the words you save.
Look up pinyin and meanings on selectable Chinese webpages with Rolko’s desktop Chrome extension. Lookup is free; saving words requires a paid plan.
How to understand Chinese characters in videos
Learn when Rolko can make Chinese subtitles or transcripts interactive and when Chinese text baked into video pixels requires a separate OCR tool.
Common questions
What to know before you start
Can I import Chinese words I already know?
Yes. Rolko supports importing existing vocabulary so experienced learners do not have to rebuild their known-word list one word at a time.
Can one list include words from videos and websites?
Yes. Supported subtitle, webpage, transcript, and text-reading flows use the same Rolko vocabulary system after sign-in.
What is the difference between learning and learned?
Learning marks vocabulary you are actively working on. Learned records vocabulary you already know while keeping it available for progress and review logic.
Does Rolko use spaced repetition?
Yes. Saved vocabulary can enter Rolko’s spaced-repetition review workflow.
Can vocabulary coverage prove that I understand a text?
No. Word coverage is a vocabulary estimate, not a guarantee of comprehension. Grammar, context, names, and segmentation also affect understanding.