youth-hostelling
noun [ U ] (US usually youth-hosteling) uk/ˈjuːθˌhɒs.təl.ɪŋ/ us/ˈjuːθˌhɑː.stəl.ɪŋ/
寄宿各地青年旅舍的旅行
the activity of travelling and staying in different youth hostels
I went youth-hostelling in Europe when I finished college. 我大学毕业后去欧洲旅行，都住在青年旅舍里。