Can not be said, can not think, but not forget.

不能说，也不能想，却又不能忘。

youdao

I had not forgotten, but some things are only suitable for collection. Can not be said, can not think, but not forget.

我什么也没忘，但是有些事只适合收藏。不能说，也不能想，却又不能忘。

youdao

However, we will never forget those difficult days, not only for the awful virus, but also for the efforts we made together and the lessons we learned.

然而，我们永远不会忘记那些艰难的日子，不仅是因为可怕的病毒，也因为我们共同作出的努力和吸取的教训。

youdao

But he said the nation must not forget the near-collapse of the banking system in two thousand eight without fixing its causes.

VOA: special.2010.04.16

Now Milton may not be able to forget Homer, but he is able to correct Homer or to preempt Homer.

弥尔顿不能忘记荷马，但他可以改正荷马或者取代荷马。

耶鲁公开课 - 弥尔顿课程节选

but it is imperative that you do not forget things as simple as brushing your teeth.

但不要忘记像刷牙这样的小事也是必须的。

Make sure 实战 - SpeakingMax英语口语达人

So Plaid must rebuild, yes, but not forget to retain their vision.

BBC: Plaid Cymru conference: TV megastars and TV licences

Is this a "forgive but not forget" moment?

NPR: Political Junkie: Clinton, Lieberman and Holder

She would overcome but not forget.

NEWYORKER: Waiting