7-Day Challenge · 7 天拼音挑战
Learn pinyin in 7 days — 10 minutes a day
One short session each day: listen to the new initials and finals, then pass a 6-question listening check. No sign-up needed. 每天 10 分钟，听音、认读、小测，7 天走完拼音入门。
Challenge complete — 挑战完成！
You have covered all 23 initials and the core finals with tones. Next step: keep the sound system warm and start real words. 下一步：进入 Foundation Track，用刚学的拼音开始学真实词汇。
How this challenge works
Each day takes about 10 minutes. Tap any sound to hear it. The quiz plays a sound and asks you to pick what you heard — wrong answers show the correct one immediately. Progress stays on this device, and syncing to your account happens automatically when you are logged in. 每天约 10 分钟，点击即可发音；答错会立刻显示正确答案；进度保存在本机，登录后自动同步到云端。 Want a slower, deeper route? The full pinyin course has 12 days of lessons and 63 practice items.