bungee jumping
noun [ U ] uk/ˈbʌn.dʒi ˌdʒʌm.pɪŋ/ us/ˈbʌn.dʒi ˌdʒʌm.pɪŋ/
蹦极（跳）
the sport of jumping off a very high bridge or similar structure, with a long elastic rope tied to your legs, so that the rope pulls you back before you hit the ground