While you are watching this TED speech, take notes briefly by using the bullet point outline. Based on your notes, please write in two or three setences to summarize the main ideas and record what you have remembered from it in one sentence. Week 1 TanLe_2011X-480p-en.mp4 观看本TED演讲,使用要点图记笔记,根据笔记用2到3句话概括主要内容并写下你印象最深刻的内容。