- 1nA2
/ˈblækbɔːrd/ · /ˈblækbɔːd/
a board with a dark smooth surface, usually black or dark green, that is fixed to the wall of a classroom so that a teacher can write on it with chalk.
黑板
複數 blackboards
核心畫面
A big dark panel on the classroom wall that the teacher on with chalk — a hard, flat surface that any number of people can read at once, and that wipes clean so the next lesson can start on it.
可以想成教室牆上那一大片深色的板子：老師拿粉筆在上面寫，全班同時都看得到；寫完一擦就乾淨，下一堂課再從空白開始。這個…更多收起
可以想成教室牆上那一大片深色的板子：老師拿粉筆在上面寫，全班同時都看得到；寫完一擦就乾淨，下一堂課再從空白開始。這個字本身就是拆得開的——black（黑的）＋ board（板子），意思幾乎全寫在字面上，所以顏色偏深綠的板子也照樣叫 blackboard。原始詞典資料2 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。
blackboardnoun/ˈblækbɔɹd/
- 1
A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard.
- Drawings and pictures are more than mere ornaments in scientific discourse. Blackboard sketches, geological maps, diagrams of molecular structure, astronomical photographs, MRI images, the many varieties of statistical charts and graphs: These pictorial devices are indispensable tools for presenting evidence, for explaining a theory, for telling a story.
blackboardverb/ˈblækbɔɹd/
- 1
To use a blackboard to assist in an informal discussion.
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。