He admits he doesn't even know when his brother is in town.

他承认甚至不知道他的兄弟什么时候在镇上。

《柯林斯英汉双解大词典》

It's a bit inconsiderate of her not to let you know when she expects to arrive.

她不让你知道她什么时候会到，这样做有些不体谅人。

《柯林斯英汉双解大词典》

I know when you fall asleep.

我知道你的入睡时刻。

youdao

Myra Olmeda is the teacher. "So what happens is when these both groups together, they're learning,you know, one from the other -- which is the greatest thing that is happening."

VOA: special.2010.06.17

I know not what the younger dreams-- Some vague Utopia--and she seems, When withered old and skeleton-gaunt, An image of such politics.

我不知年幼者梦想什么-,某种模糊的乌托邦--她仿佛，当枯萎衰老瘦骨嶙峋的时候，这类政治的一个鬼影。

耶鲁公开课 - 现代诗歌课程节选

Top-down processing is an example of when you know what something is you hear it that way.

举例来说,自上而下加工就是,当你知道某句话是什么的时候,你便会按照这句话去听

耶鲁公开课 - 心理学导论课程节选

There's, you know - when we were making this record and writing it - first of all, it's noteworthy to say that we actually wrote it within eight days.

NPR: The LeeVees, Rocking Hanukkah

Mr. VERRALL: And Starbuck's also confirmed it, which, you know - so when - actually when it gets brewed, the acidity goes away.

NPR: Vegetable Gardening On A Budget

But it - you know, when you said that to me, I just - all I could do was like, grab my heart.

NPR: Rocky Mountain Activist Carole King