核心畫面
Read the two halves: play + ground, a patch of ground set aside for playing. Picture the space beside a school or inside a park with swings, a slide and a climbing frame, where children are let loose to run around. From that picture the word stretches to any place where a certain kind of person goes to enjoy themselves.
可以先拆成 play（玩）+ ground（一塊地）：一塊專門留給人玩的地。畫面比較像學校旁邊或公園裡那塊空地，有鞦…更多收起
可以先拆成 play（玩）+ ground（一塊地）：一塊專門留給人玩的地。畫面比較像學校旁邊或公園裡那塊空地，有鞦韆、溜滑梯、攀爬架，小孩被放出來在上面跑。從這個畫面延伸出去，任何一群人專門去玩樂的地方也能叫 playground。原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
playgroundnoun/ˈpleɪɡɹaʊnd/
- 1
A large open space for children to play in, usually having dedicated play equipment (such as swings and slides).
- The kids have to go to the playground during recess, no matter the weather.
- The local council have set up a new playground, equipped with slides, swings, and a climbing wall.
- 2
Any physical or metaphysical space in which a person or organization has free rein to do as they please.
- The exclusive tropical island was a millionaire's playground.
- Kjelsås (six miles) marks the end of the suburbs, and the line immediately plunges into Nordmarka. This vast untamed area of forest and mountain (much of it over 2,000 ft. above sea level), interspersed with innumerable lakes, large and small, is known as Oslo's playground.
- 3
computingengineeringmathematicsA sandbox for testing calls to an application programming interface.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。