我还没给手表上发条，所以我不知道时间。

I still hadn't wound my watch so I didn't know the time.

《柯林斯英汉双解大词典》

他们不知道时间到底有多么重要。

They do not know how important time is.

youdao

一切都变得越来越荒诞离奇，她再也不知道时间是怎样过去的了。

Everything grew more and more extravagant, and she no longer knew how time passed.

youdao

You didn't know who wrote it, where, when, how, why, and someone says to you, "I want you to draw some conclusions about that piece of writing.

你不知道是谁，在哪里，什么时间，怎么样，为什么要写,然后你被要求对篇文章，做一个总结。

耶鲁公开课 - 旧约导论课程节选

I don't know if you know this, but for a long time when movies took place in New York,

我不清楚你是否知道，很长一段时间，电影里发生在纽约的场景，

电影里的中央车站 - SpeakingMax英语口语达人

I don't know what the dates say, 1916, excuse me, and you can see what he's done.

我不知道具体时间了，1916年，不好意思，你能看到他在做什么了。

麻省理工公开课 - 固态化学导论课程节选