black
board
复数形式
blackboards
1
黑板, 黑板书
a large board with a smooth dark surface that is written on with chalk in schools
A blackboard is a smooth, flat surface, usually black or dark green, that is used for writing or drawing with chalk. It is commonly found in classrooms and other learning spaces, where it helps teachers or presenters share information with a group of people. The surface of the blackboard allows the chalk to be easily erased, making it possible to reuse the board many times. Blackboards are often mounted on a wall or supported by a stand, making them easy to see from a distance.
- The teacher wrote the lesson on the blackboard.
老师在黑板上写了这节课。
- She erased the blackboard after class.
下课后她擦了黑板。
- The blackboard was filled with math problems.
黑板上写满了数学题。
- He used colored chalk to draw on the blackboard.
他用彩色粉笔在黑板上画画。
- The classroom has a large blackboard at the front.
教室前面有一块大黑板。
同义词：