erase
/ɪˈreɪz/verb
with obj.
1- rub out or remove (writing or marks)抹去, 擦掉, 把（笔迹, 痕迹）擦去：
graffiti had been erased from the wall.
墙壁上乱涂乱画的东西被擦掉了。
1.1
- remove all traces of (a thought, feeling, or memory)抹去（想法, 情感, 记忆的痕迹, 忘掉）：
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。
1.2
- destroy or obliterate (someone or something) so as to leave no trace杀死; 破坏; 消灭; 消除：
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。
1.3
- 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）。
派生词
erasable
adjectiveerasure
noun词源
late 16th cent. （originally as a heraldic term meaning 'represent the head or limb of an animal with a jagged edge'）： from Latin eras - 'scraped away', from the verb eradere, from e （variant of ex-） 'out' + radere 'scrape'.