blackboard

n.

黑板；

复数：blackboards

blackboard eraser n. 黑板擦

1. Who's rubbed my figures off the blackboard?
   谁把我写在黑板上的数字擦掉了?
2. The blackboard is in the front of the classroom.
   黑板在教室的前面。
3. Please raise your head and look at the blackboard.
   请抬起头来，看黑板。
4. The teacher wrote on the blackboard with a piece of chalk.
   老师用一支粉笔在黑板上写字。
5. The teacher wrote down the new words on the blackboard.
   老师在黑板上写出新单词。

Blackboard
Blackboard
Blackboard
A blackboard architecture for control
A blackboard architecture for control
The blackboard model of problem solving
Blackboard and Multi-Agent Systems & the Future
The Evolution of Blackboard Control Architectures
Electronic blackboard and accessories such as writing tools
Neural blackboard architectures of combinatorial structures in cognition.
Collaborating Software: Blackboard and Multi-Agent Systems & the Future
Blackboard Systems : The Blackboard Model of Problem Solving and the Evolution of Blackboard Architectures
Using IT in the undergraduate classroom: should we replace the blackboard with PowerPoint?