爱思英语编者按:2007年3月13号,我交出了房子的钥匙,将我的东西都放在储藏室里面,背上背包,带上笔记本和相机,开始了我的环球之旅。3年内,我走遍了70个国家,在对地球上各地风土人情的了解方面,我可以说是相当于博士毕业了。On March 13, 2007, I handed over the keys to my house, put my possessions in storage and headed out to travel around the world with nothing but a backpack, my laptop and a camera.2007年3月13号,我交出了房子的钥匙,将我的东西都放在储藏室里面,背上背包,带上笔记本和相机,开始了我的环球之旅。Three and a half years and 70 countries later, Ive gotten the equivalent of a Ph.D in general knowledge about the people and places of Plane