They were not sure whether he could come or not.
他们不能肯定他是否能来。
They were not sure whether they could come or not.
他们不能确定是否能来。
As usual, when they met, they were not sure what to say.
像以前一样，当他们见面时，不知道说什么好。
The French, after all, were not sure if the joint venture would last.
毕竟法国一直不确定合营公司是否能长久。
They loved the house but were not sure of the firmness of its foundation.
他们很喜欢这个房子，可是对其地基的坚固没有把握。
Officials at the ESA were not sure exactly what caused the camera to fail.
官员们不确定到底什么是ESA引起的相机的失败。
What would you do if you were not sure about your solution to your problem?
如果你对你解决问题的方案不是很确定的时候，你会怎么办呢？
They offered various explanations, but were not sure how the hole had been caused.
他们提出多种解释，却不能确定这个洞时是怎么造成的。
We were not altogether sure that the comet would miss the Earth.
我们不太确定这颗彗星是否会错过地球。
Dr Caspi and Dr Moffitt, however, were not so sure.
然而，卡斯普博士与莫菲特博士都不是非常确定。
As it is, I am not sure if I really have a specific place I would like to be buried at if I were to die today.
正如我所说，我不确定，如果我今天就死去，我是否有一个自己想被埋葬的地方。
I'm not sure which website they were referring to.
我不确定他们指的具体是哪一个网站。
Still I involuntarily obeyed him, as if I were not quite sure.
可是我还是身不由己地服从了他，好像是我也没有弄明白似的。
Many people were not quite sure what to think.
对这一创造，很多人还不知道自己该想什么。
They were also quite sure that a cigarette end did not start the fire.
他们还十分肯定火灾也不是由烟头引起的。
Not sure what it was, but people were super nice to me while I was there.
不确定那是什么，但我在那边的时候大家都对我非常好。
A few managers were not so sure.
一些管理人员对回购105并不是这么肯定。
He does not think they were blood related, but is not really sure.
他不认为他们之间有亲戚关系，但是也不能确定。
She was not sure whether the congratulations and kindness were or were not ironical.
她不很知道这种祝贺和好意到底是不是含讥带讽的。
Not sure if they were wild, but they were looking very thin.
不懂它们是否野生的，但看上去瘦骨嶙峋。
Were we sure you were not always where we set you down?
我们可曾确信你并不总在我们的安排之处？
"I'm not sure if you folks were at the airport," he said.
“我不确定你们是否在机场，”他说。
If it were not, I'm sure more people would be successful.
如果不是的话，我确信将会有更多的人获得成功。
Why was Harter so sure that those photos were not taken by Johnson?
哈特为什么认定这照片不是约翰逊拍的？
We made sure you were not coming today.
我们感觉你今天一定不来了。
I'm not sure if this is true, but what I can say is that we were competitive again.
我不敢确定这是事实，但我可以说的是，我们再一次有竞争力了。
I'm not sure if this is true, but what I can say is that we were competitive again.
我不敢确定这是事实，但我可以说的是，我们再一次有竞争力了。
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