Rub out chalk marks with an eraser.

用黑板擦擦掉粉字迹。

I like to use pencils with erasers on top.

我喜欢用带橡皮。

Want eliminate to stay in the trace of the heelpiece on the floor, using pencil eraser to brush is best method.

要除去留在地板上鞋后跟痕迹,用擦子擦是最好方法。