How to say “Someone's built a huge cardboard castle in the playroom, so leave it up for tomorrow.” in Japanese
In Japanese
誰かがプレイルームに段ボールででっかいお城を作ったみたい。明日も遊べるように、そのままにしといて。
Dareka ga pureirūmu ni danbōru de dekkai oshiro o tsukutta mitai. Ashita mo asoberu yō ni, sono mama ni shitoite.