词典释义：
rub out or remove (writing or marks)
抹去，擦掉，把（笔迹，痕迹）擦去
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graffiti had been erased from the wall .墙壁上乱涂乱画的东西被擦掉了。
remove all traces of (a thought, feeling, or memory)
抹去（想法，情感，记忆的痕迹，忘掉）
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the magic of the landscape erased all else from her mind .绝妙的风景使她忘掉了其他的一切。
destroy or obliterate (someone or something) so as to leave no trace
杀死；破坏；消灭；消除
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over twenty years the last vestiges of a rural economy were erased .二十年间，农村经济的最后残余就被消灭了。
remove recorded material from (a magnetic tape or medium); delete (data) from a computer's memory
从（磁带，载体）上抹录音（或录像）；（从计算机存储器中）删除（数据）。
"late 16th cent. （originally as a heraldic term meaning ‘represent the head or limb of an animal with a jagged edge’）： from Latin
