Confidentially, I am not sure that it wasn't above their heads.
私下里说，我不确定这没有超出他们的理解。
They had been invited to a Hindu wedding and were not sure what happened on such occasions.
有人邀请他们去参加一个印度教徒的婚礼，但他们不清楚这样的庆典会是怎样一种场面。
—Can you have a picnic with me this Sunday, Cindy? —I'm not sure.
——辛迪，这个星期天你能和我一起去野餐吗？ ——我不确定。
"I'm not sure," said Mrs. Brown.
“我不确定。”布朗夫人说。
We are not sure when this pandemic will end.
我们不确定这场大流行病何时结束。
I'm not sure if my leg will be ready for the game.
我不确定我的腿能不能在比赛前恢复。
I was still not sure what competition really meant.
我仍然不确定竞争到底意味着什么。
I'm not sure what kind of engineer I want to be yet.
我还不确定自己想成为什么样的工程师。
I'm not sure whether my suggestion is helpful to you.
我不确定我的建议对你是否有用。
I'm not sure about the exact date but I totally agree.
我不确定具体日期，但我完全同意。
Today they are still not sure if there was life on Mars.
今天他们仍然不确定火星上是否有生命。
The man might be a doctor in this hospital, but I'm not sure.
那个人可能是这家医院的医生，但我不确定。
We might have a graduation ceremony next week, but I'm not sure.
我们下周可能会举行毕业典礼，但我不确定。
I think she is either a Canadian or a German, but I am not sure.
我认为她要么是一个加拿大人，要么是一个德国人，但是我不确定。
At the very beginning, Jack was not sure whether to work with him.
一开始，杰克不确定是否要和他合作。
I am not sure what the problem is, but I make sure I got those credits.
我不确定问题在哪，只能确定我获得了那些学分。
I'm not sure what I want to be but I'm sure that you have already known.
我不确定我想成为什么，但我相信你已经知道了。
Not sure I've ever run that far, so I'd better start doing a bit of training.
我不确定我是否跑过那么远，我最好开始训练一下了。
When we are not sure which word is the right one, look it up in a dictionary.
当我们不确定哪个单词是正确的单词时，请在字典中查找。
If you're not sure how to talk to them about it, ask a trusted friend for advice.
如果你不确定该如何和他们谈论这件事，可以向你信任的朋友寻求建议。
I am not sure that this was true, but Peter thought it was true; and it scared them.
我不确定这是不是真的，但彼得认为这是真的；这吓坏了他们。
Don't worry if you are not sure where you're headed or what your long-term goals are.
如果你不确定你的目标是什么，或者你的长期目标是什么，不要担心。
We can earn more money in the future, but I'm not sure we can change men's attitudes.
将来我们可以赚更多钱，但我不确定我们能否改变男人的态度。
Scientists are still not sure what messages the sun bears were sending to one another.
科学家们仍然不确定太阳熊之间互相传递了什么信息。
If you're not sure, it is always a good idea to check with your primary care provider.
如果您不确定，最好与您的初级保健提供者联系。
I looked down at my hands wrapped around the lemonade bottle, not sure what to do now.
我低下头，看着自己交叠在柠檬水瓶上的双手，不知道现在该做些什么。
I'm not sure what made me look at her as she walked slowly by her wooden walking stick.
当她拄着木拐杖慢慢走时，我不确定是什么促使我看着她。
I can't find my purse. I could have left it in the supermarket yesterday, but I'm not sure.
我找不到我的钱包了。昨天可能我把它忘在超市了，但我不确定。
I'm not sure whether the glaciers can regrow even if the planet's temperature is controlled.
我不确定即使地球的温度得到控制，冰川是否能再生。
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