Self knowledge is like lost innocence, however unsettling you find; you can never be un-thought or un-known.

自我认知就像逝去的天真，不管你有多不安；你不可能不去想或是充耳不闻了。

youdao

You can never wipe out the past.

你永远不能把过去一笔勾销。

《牛津词典》

Some people are so terribly insincere you can never tell if they are telling the truth.

有些人虚伪得可怕，你绝对无法搞清楚他们是否在讲真话。

《柯林斯英汉双解大词典》

MILK: "All men are created equal. No matter how hard you try you can never erase those words.

VOA: special.2009.02.20

Get busy, give charity. It's a problem that never goes away, so you can never rest.

忙碌劳作，给予施舍，这是一个永远不会消失的问题,所以你永远没办法停歇。

耶鲁公开课 - 旧约导论课程节选

You can never--there's a strong legal precedent for not being able to make a claim about stolen bass, because these basses are limited in number, they involve rather simple harmonic progressions, and they've been used over the centuries.

可是你绝对不可能起诉别人抄袭低音部，这个强有力的法律判例，因为低音部的选择很有限，他们由很简单的和声进程组成，几个世纪以来一直在反复使用。

耶鲁公开课 - 聆听音乐课程节选

If you are on the ground, you can never keep up with the action.

CNN: 'Earth' takes viewers on 'breathtaking' global journey

"You can never be certain though but this is a very rare occurrence, " Mr Holden said.

BBC: Tributes to Middleton man killed by horse in Edenfield

You can never say you are 100% convinced when you sign a player from abroad, it's a tough league.

BBC: Berbatov not for sale, says Jol