So sad did she look that I didn't know what to say to comfort her.

她看起来很伤心，我不知道该说什么来安慰她。

youdao

You know, I must say I was pleased to hear from you, but from what you said on the phone, everything is so sudden.

我真的很高兴听到你的消息，但正如你在电话里说过的，一切都太突然了。

youdao

The article is so poorly-organized that I don't know what to say after reading it.

这篇文章条理不清， 使人看了不知所云。

《新英汉大辞典》

"A player who hasn't been playing for very long, I try to keep them next to the section player, or leader as we call it, that has been playing a while so they can always ask questions say, 'Hey,I don't know what that means.'" Matt is now in college, studying music education.

VOA: special.2010.06.21

So I don't know if it Does it matter what you say to babies as long as you say something.

所以我想知道,是不是只要你对婴儿说话就行,说话的内容并不重要

耶鲁公开课 - 心理学导论课程节选

In fact, when you walk in, you know, and say, "Oh, I'm here to visit so and so..."

事实上，当你走进去，然后说“我是来这儿拜访某某人……”

上东区的房子 - SpeakingMax英语口语达人

"I'm just so tired, I don't know what to say right now, " Lundqvist said with a smile.

WSJ: Lundqvist leads Rangers past Hurricanes, 4-1

And she just was - she joked about her book club and said, you know, I know the pundit say that I sell books, so I can sell votes.

NPR: Oprah on a Plane �� for Obama

And so I would say, you know, that they need to learn everything about everything.

NPR: Help 'Ask Amy' Write A Commencement Speech