Well, I don’t know for sure either.
我也不知道。
但我怎样才能肯定到地该不该？
However, we don't know for sure.
然而，我们仍然不能确信。
但我也不敢肯定。
你什么时候会确信？
我们可能永远无法确定。
您肯定的事情是什么？
你怎么能把握得住呢？
I wonder when we'll know for sure.
我想知道什么时候才有准确的消息。
你不可能确切知道。
Really? When will you know for sure?
真的吗？你什么时候能肯定？
我不能肯定。
Me too. I wish we could know for sure.
我也是。我希望我们能知道得确切些。
That is the only thing we know for sure.
这是我们唯一确定的事情。
Let me try, and we'll know for sure. Won't we?
让我试一下，我们就知道他们说的对不对了。不是吗？
I know for sure that the present regime will not.
但我肯定当前的体制做不到。
Don't know for sure, but yes, I think there is some.
还不能确定，但答案是肯定的，我认为有些产品会是这样的。
One thing we know for sure — it is not the Higgs boson.
只有一件事我们相当确定——一定没有希格斯玻色子。
But I know for sure that she was my mother's best friend.
可是我知道了，她就是我妈妈的好朋友。
We do not know for sure yet if this is the only "1%" bug.
我们还不确定这是不是导致“1%”问题的唯一臭虫。
Simply put, until recently we really didn't know for sure.
简单地说，直到最近我们也真的不知道确实的情况。
And I know for sure that we helped you in a way or another.
我也肯定我们在某方面帮助过你们。
I am going to take a throat culture so we'll know for sure.
我准备做一次咽喉细菌培养，以便确诊。
What I know for sure is that what you give comes back to you.
我非常确信一点，就是你付出过什么，你就会有什么回报。
What I know for sure is that what you give comes back to you.
我非常确信一点，就是你付出过什么，你就会有什么回报。
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