schoolyard

校園、操場、學校空地

The children played tag in the schoolyard during recess.

下課時間，孩子們在操場上玩鬼抓人。

幼稚的、孩子氣的多作名詞前修飾

Their debate quickly sank to the level of schoolyard insults.

他們的辯論很快就淪為幼稚的互相叫罵。