noun 下载 🔗分享 黑板 A large flat surface, finished with black slate or a similar material, that can be written upon with chalk and subsequently erased; a chalkboard. Examples : "The teacher wrote the math problem on the blackboard. " 老师在黑板上写了这道数学题。 education writing stationery material building 与AI对话词汇游戏阅读练习
verb 下载 🔗分享 在黑板上写写画画,用黑板演示。 To use a blackboard to assist in an informal discussion. Examples : "The teacher blackboarded the steps to solve the math problem, making it easier for the students to follow along. " 老师在黑板上写写画画地演示了这道数学题的解题步骤,让学生们更容易理解。 communication education 与AI对话词汇游戏阅读练习