blackboard

名词 blackboard:

1. sheet of slate; for writing with chalk
   同义词：chalkboard

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。

black.board

n.（名词）
A smooth, hard, dark-colored panel for writing on with chalk.
黑板：能用粉笔在其上书写的光滑、硬质、深色的板