david 9f785ada96 book-4-lesson-3: regenerate master with Claude Opus assembly ...

Re-assembled with claude-opus-4-5 (vs Gemini): cleaner topic-based
titles, grammar→drill sequencing, pronunciation consolidated into a
review part. 8 parts, 74 activities, 392 clips verified byte-identical.

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

2026-06-18 07:08:08 +08:00

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