⏪ 新概念英语 - [4-022] - (97版) ⏩ ⏳ 正在检测本地文件... First listen and then answer the following question.先听录音，然后回答后面的问题。In what two areas have people made no 'progress' at all? 在哪两个领域人们根本没有取得任何'进步'？Knowledge and progress 📁 请先导入本地文件， 需要帮助？点击我 ↗