She stared blankly into space, not knowing what to say next.

她两眼发直，不知道下面该说什么。

《牛津词典》

I started pottering around outside, not knowing what I was doing.

我开始在外面混日子，不知道自己在做些什么

《柯林斯英汉双解大词典》

I can remember the thrill of not knowing what I would get on Christmas morning.

我记得，在不知道圣诞节早上会收到何种礼物时自己的激动心情。

《柯林斯英汉双解大词典》

They spoke Russian. Not knowing the language, Bourke-White smiled in agreement at each man as he spoke.

VOA: special.2009.05.10

We have this suspense, as I say, between expectation, the possibility of violation, and simply not knowing.

我们有这么一个悬念，正如我所说的，在期望和期望被违背的可能性之间，而且我们完全不知道。

耶鲁公开课 - 文学理论导论课程节选

learned English, came here not knowing really anything other than "Hi, how are you?"

学了英语，我刚来的时候，除了“嗨，你好吗？”什么也不会。

第二外语，英语 - SpeakingMax英语口语达人

We do this work for the kids who will grow up not knowing Guinea worm disease.

WHITEHOUSE: Dream Big: Water

He also joked about members of the Southeastern Conference not knowing how to read or write.

WSJ: Ohio State Board Warns President Over Comments

Not knowing what the emergency was, she nervously woke up her roommate and did just that.

CNN: Cruise ship diverted to Bahamas port after fire