例句
Our teacher drew a huge circle on the blackboard.
老师在黑板上画了一个大圆圈。
Although digital screens offer interactive features, a traditional blackboard remains an affordable teaching tool for many schools.
尽管电子屏幕具有互动功能，传统黑板仍是许多学校负担得起的教学工具。
常用搭配
- write on the blackboard｜在黑板上书写
- clean the blackboard｜擦黑板
- blackboard eraser｜黑板擦
用法提示
在黑板上用on the blackboard；配合粉笔使用。