When I was twelve or thirteen years old, an uncle of mine who gave me my love for books and pictures promised to take me upon a memorable expedition.当我十二三岁的时候，我的一个叔叔——正是他使我爱上书本和绘画的——答应带我经历一次值得回味的探险。
1.mine:my uncles
2.介词短语of mine和who引起的定语从句分别修饰uncle。
3.memorable:Something that is memorable is worth remembering or likely to be remembered, because it is special or very enjoyable. 值得记住的; 易记住的
4.expedition:An expedition is an organized trip made for a particular purpose such as exploration. (以探险等为目的的) 有组织的旅行