When people ask me what I do for a living, I don "t really know what to say."

当人们问我我做何营生，我真不知道说什么。

youdao

I don "t know what to say."

我不知道说什么才好。

youdao

I really don t know when is the best time to say the L-word.

我真不知道何时才是说“爱”字的最好时候。

youdao

LOU COSTELLO: "What I want to find out." BUD ABBOTT: "I say Who's on first, What's on second, I Don't Know's on third."

VOA: special.2009.03.09

So if you haven't already, just glance at the person next to you, or say hello if you don't know them.

如果你还没有做好，那就看看你旁边的人,如果你不认识他们就跟他们打个招呼。

哈佛公开课 - 计算机科学课程节选

But for me, I like to look at something and just say, "I like this. I don't really know why though."

但对我来说，我喜欢看着某个东西，然后说，“我喜欢这个。但我也不知道为什么。”

关于现代美术 - SpeakingMax英语口语达人

Don't say what you don't know for sure until it's finally decided.

CNN: Five things we learned from the Benghazi hearings

You know, they say I don't know, you know, whether the other company will ever be able to pay me back.

NPR: Fed OKs Changes At Goldman, Morgan Stanley

"It's something to say when you don't know what to say, " says one of the two children, Jane.

BBC: Supercalifragilisticexpialidocious: What does it mean?