david 7a1458957b book 4: audit+sim repairs — alphabetical key fix, restored past-tense drill + 4 vocab passes + L4 alphabetizing (42 clips), llm grading on 6 Q&A activities, wonder/done ASR verdict via formant analysis, 4a-f8 pair clips re-anchored, l4-s30 story reference ...

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-08-22 22:53:22 +08:00

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