⏪ 新概念英语 - [2-048] - (97版) ⏩ ⏳ 正在检测本地文件... First listen and then answer the question.先听录音，然后回答问题。Why did the writer become very worried? 为什么作者变得非常担心？Did you want to tell me something? 📁 请先导入本地文件， 需要帮助？点击我 ↗