0 a large bag used to carry things on your back, used especially by people who go camping or walking -- (尤指徒步旅行或登山时背的)旅行包,背包
1 to travel or go camping while carrying your clothes and other things that you need in a backpack -- 背包旅行;野外露营
We backpacked around Thailand. 我们在泰国背包旅行。