擦黑板用英语怎么说怎么写

"Wipe the blackboard" 或 "Erase the blackboard" 是擦黑板的英语表达方式。

来源：在学校教室里，老师会用黑板授课，擦黑板是指把黑板上的笔迹擦掉，准备写下新的笔迹。

例句：

"Please wipe the blackboard before the next class." (请在下一节课前擦黑板)
"I need to erase the blackboard because I made a mistake." (我需要擦黑板，因为我犯了一个错误)
"Can someone please come up and wipe the blackboard?" (能有人来擦黑板吗?)