Jeannie 材料的趣味性，内容充实性。
Another key thing that Jeannie focused on was meaning and interest. In other words, she always chose English materials that were interesting to her that had meaning for her. Textbooks usually don't have much personal meaning. So she chose a story "Oh, this story is very interesting, I want to read this book." She was focused on the meaning. She was focused on the story. She was not focused on grammar points or vocabulary. And the same in her listening, she chose listening that was interesting and fun and meaningful to her. So that's interesting.