It's a bouncy castle with slats in the side to allow the air to escape.

这是一个充气城堡，其侧边有间隙，以使空气能够溢出。

youdao

Clear a bouncy castle round when bouncing off the castle floor fewer than 6 times.

在接触地面小于6次的情况下通过充气城堡关卡。

youdao

Clear a bouncy castle round when bouncing off the castle floor fewer than 6 times. You should play Bassketball!

过关时选择装备沙滩排球进入充气城堡关卡，在敌人间不断反弹，保证自己与地面接触的次数小于6次即可。

youdao

I'm glad I've stuck to my one-cup-of-coffee rule: I'm wearing ski bibs, a climbing harness (in case I need to be fished out of a crevasse) and a high-tech avalanche pack that can inflate with one tug, turning me into a human bouncy castle.

WSJ: Heli-Skiing in Greenland