blackboard
noun [ C ] uk/ˈblæk.bɔːd/ us/ˈblæk.bɔːrd/ (US also chalkboard)
A2 黑板
a dark surface on a wall or frame that a teacher writes on with chalk (= white substance)
- More examples
- Alice rubbed the blackboard clean for the teacher.
- She rubbed the sums off the blackboard for the teacher.
- I hate the scrape of chalk on a blackboard.
- The lecturer illustrated his point with a diagram on the blackboard.
- My daughter has a blackboard in her bedroom.