backpacking
noun [ U ] uk/ˈbækˌpæk.ɪŋ/ us/ˈbækˌpæk.ɪŋ/
B1 背包旅行；野外露营
the activity of travelling or going camping while carrying your clothes and other things that you need in a backpack
to go backpacking 背包去旅行
a backpacking trip/holiday 一次背包旅行／一个背包旅行假期