unlearned

基本解释

Somewhere throughout the years we unlearned this important trait.
這些年來，我們將這一重要品質忘卻在某処。
Knowledge cannot be unlearned, so the best way to oppose the villains is to have lots of heroes on your side.
知識是忘不掉的，所以阻止壞人的最好辦法就是在正義一方聚集更多的英雄。
And, perhaps, unlearned as she was, she could have brought a dawning knowledge home to Mr Dombey at that early day, which would not then have struck him in the end like lightning.
雖然她沒有什麽文化知識，可是她卻能夠在事情一開始的時候，就讓董貝先生了解一些情況，這樣就不會在最後像閃電似地使他萬分驚愕。

Our financial first responders were feckless, our legislators spineless and our lessons from Katrina unlearned.
NPR: Katrina's Unlearned Lessons Leave Financial Mess
It was as if all the lessons of financial history had been unlearned.
FORBES: One Hell Of A Decade But Dice Have No Memory
No scientist working on India's nuclear programme was under any illusion that bomb-making technology, once learned, could somehow be unlearned.
ECONOMIST: India