Ball pit
01
ボールプール, ボールピット
an indoor play area filled with a large quantity of small, colorful plastic balls, often found in amusement parks, playgrounds, and children's entertainment centers, where kids can jump, play, and interact within the soft and bouncy environment
例
The children spent hours playing in the ball pit at the indoor play center.
子供たちは室内遊戯施設のボールプールで何時間も遊んで過ごしました。
