黑板擦在英语中被称为 "chalkboard eraser"，这个词来源于黑板擦是用来擦除黑板上的粉笔垃圾的工具。例句：

Please pass me the chalkboard eraser so I can clean the board.（请把黑板擦给我，我要把黑板擦干净。）

The chalkboard eraser is too dirty. Can we get a new one?（黑板擦太脏了，我们能换一个吗？）

I always forget to put the chalkboard eraser back in its place after using it.（我总是忘记用完黑板擦后把它放回原处。）