【文章标题】：Show HN: SubSmith – Turn your own videos into language-learning material 【文章标题】：Show HN：SubSmith——将你的视频转化为语言学习素材
【文章正文】： SubSmith: Learn languages from the content you love. SubSmith：从你喜爱的内容中学习语言
Understand what native speakers really say. Learn vocabulary in context. Make progress with every video you watch. 听懂母语者的真实表达。在语境中学习词汇。每看一个视频都有进步。
7-day free trial • No credit card 7天免费试用 • 无需信用卡
How it works 工作原理
From file to fluency in three steps 三步实现从文件到流利
Drop any file. Get accurate subtitles. 拖入任意文件。获取精准字幕。
Supports all popular formats: MKV, MP4, MP3. Accurately synced subtitles, so you never adjust timing again. 支持所有主流格式：MKV、MP4、MP3。字幕精准同步，无需反复调整时间轴。
Stop pausing to check Google Translate 告别暂停查词典
Hover over any word for instant definitions. Stay in the flow while building vocabulary naturally. 悬停查词即时释义。保持沉浸状态，自然积累词汇。
Mine sentences in one click 一键收集例句
Export audio clips, screenshots, and definitions to Anki. Turn content into a week of flashcards. 导出音频片段、截图和释义至Anki。将内容转化为一周的记忆卡片。
Cheaper than a textbook. More effective than a class. 比教材更实惠，比课堂更高效。
7-day free trial. No credit card required. 7天免费试用，无需绑定信用卡。
Billed annually. Cancel anytime. 按年计费，随时取消。
- Learn from any video or audio file
- 支持任意视频/音频文件学习
- 99+ languages supported
- 支持99+种语言
- Hover dictionary with instant definitions
- 悬停查词即时释义
- One-click Anki flashcard export
- 一键导出Anki记忆卡
- Edit timestamps and transcripts
- 编辑时间轴与文本记录
- Export subtitles (SRT) or plain text
- 导出字幕(SRT)或纯文本
Best value - one payment, no renewals 最佳性价比——一次性付费，无需续订
The Lifetime licence itself doesn’t expire. Compatibility, updates, and online services depend on the supported lifetime of the product. See the Terms of Service. 终身许可永久有效。兼容性、更新和在线服务取决于产品支持周期。详见服务条款。
Frequently Asked Questions 常见问题解答
Everything you need to know about SubSmith 关于SubSmith的所有须知
Where to go next 下一步指南
These guides help you move from curiosity to a concrete immersion workflow. 这些指南助你从好奇者进阶为沉浸式学习实践者。
Estimate your immersion timeline 预估你的沉浸学习时间线
Use the Japanese roadmap or the Spanish roadmap to see how many hours it typically takes to reach your next level. 参考日语学习路线图或西语路线图，了解达到下一级别通常需要的时长。
Study from local files, not just streaming sites 本地文件学习（不仅限于流媒体）
If your workflow starts with downloaded shows, podcasts, or MKV files, read how local-file sentence mining works before you build your setup. 如果你的学习素材是下载的剧集、播客或MKV文件，搭建系统前请先阅读本地文件例句采集指南。
Switch away from browser-only tools cleanly 彻底告别浏览器限定工具
If you are comparing desktop and browser workflows, start with the Language Reactor alternative guide for the main tradeoffs around local files, crashes, and offline study. 若在比较桌面端与浏览器方案，请先阅读《Language Reactor替代方案指南》，了解本地文件、崩溃风险和离线学习等核心权衡要素。