柯林斯詞典blackboard /?bl?k?b??d/ (blackboards) 1. N-COUNT A blackboard is a dark-coloured board that you can write on with chalk. Blackboards are often used by teachers in the classroom. 黑板 The menu was on a blackboard. 菜單在黑板上。 返回 blackboard劍橋詞典a dark surface on a wall or frame that a teacher writes on with chalk (= white substance ) 黑板 範(fàn)例 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 . 返回 blackboard