In this case, Zhao used his finger to overlay a drawing and then used a larger object, his cell phone, as an eraser.

在这种情况下，赵用自己的手指覆盖图形，然后用一个较大的对象，他的手机作为一个橡皮擦。

youdao

In this case, Zhao used his finger to overlay a drawing and then used a larger object, his cell phone, as an eraser.

在这种情况下，赵用自己的手指覆盖图形，然后用一个较大的对象，他的手机作为一个橡皮擦。

youdao