bouncy castle
noun🔊/ˌbaʊnsi ˈkɑːsl/
🔊/ˌbaʊnsi ˈkæsl/
(especially British English) (North American English usually bounce house, bouncer)
a plastic castle or other shape that is filled with air and that children can jump and play on 充气欢乐堡（儿童游戏用的塑料城堡）