erase

请用这块橡皮把这些铅笔痕迹擦掉。

Please ___erase the pencil marks with this eraser.

他决定彻底删除那段不愉快的回忆。

He decided to ___erase that unpleasant memory completely.

老师用黑板擦擦掉了错误的答案。

The teacher used an eraser to ___erase the wrong answer from the blackboard.