I can't say for certain when we'll arrive.
我说不准我们什么时候能到。
I can't say for certain right now.
我现在还说不定呢。
I can't say for certain who will come.
我没有把握谁会来。
I can't say for certain where he lives.
我不敢肯定地说他住在什么地方。
Harris says: "We can't say for certain."
哈里斯说：“我们说不准。”
I can not say for certain when he will arrive.
我不敢确定地说他将何时到达。
I could not say for certain that he was wrong.
我不能断然地说，他是错了。
We can not say for certain which eigenvalue will be obtained.
我们不能说一定得到哪个本征值。
No-one was able to say for certain exactly when this had happened.
没有人能肯定这是什么时间发生的。
I can't say for certain, but let's set up a phone interview for Monday.
我还不能完全确定，不过我们可以在周一进行一次电话面试。
But it is hard to say for certain these days what a World Expo is for.
但是，在当代，真的很难说清楚一届世博会举办的目的是什么。
We cannot say for certain, but internal evidence indicates the following.
我们不能肯定地说，但内部的证明显示如下。
We can't say for certain that the Citroen C-Quatre is just for the Chinese market.
我们不能说的肯定，雪铁龙的C -四是为中国市场。
No one can say for certain just how she survived the water and the wreckage around her.
没有人能说得清她如何从周围的洪水和废墟中死里逃生。
Administrators can't say for certain how many strangers have used the online classifieds site.
网站管理员们不能确定究竟有多少陌生客使用了这个在线分类广告网站。
I can't say for certain, but I think (have a feeling, have an idea) he might be from the States.
我不能肯定，但我觉得(猜想)他也许是从美国来吧。
We may find that we come across some photos that we cannot say for certain exactly which gull it is!
在图片中，我们可能发现碰到一些我们无法确认的个体！
How it became so intricately associated with moon worship and the Midautumn Festival — no one can say for certain.
至于月饼是如何辗转地与拜月和中秋节联系在一起的，还没有人能够说得清楚。
For example, can you say for certain that treatment a is better than the control treatment, or could it just be due to chance?
例如，你能确凿地说A处理水平比控制水平好吗，还是这只是偶然？
Neil adds that while multiple shifts are more the norm than the exception, he couldn't say for certain without formally researching the issue.
内尔补充说，频繁转换工作已经成为一种常态，在没有正式调查的情况下，他也无法说出确切的数字。
Provided some common sense is paid to health checkups, drug choice, dosage and off-time , how can we say for certain that the user is worse off for doing so?
提供了一些共同的感觉是支付给健康检查，药物的选择，剂量和关断时间，我们怎么能说的肯定，用户更糟糕的是这样做呢？
She still says, "If you ask a bank where menace is, they can say for certain is ACH and telegraphic bilk, because this both relies on the data of bank account."
她还说，“如果你问银行威胁在哪里，他们肯定会说是ACH和电信诈骗，因为这两者都依赖于银行账户的数据。”
I might get up, but if I got up and looked at it, ten to one I shouldn't be able to say for certain; because once a thing's done, no one ever knows how it happened.
我本来可以站起来，但是，即使我站起身来瞧瞧它，十之八九我也说不出它到底是什么；因为一旦一件事发生以后，就没有人能知道它是怎么发生的了。
In general, supplying and using this software is illegal in the wider market, but no one can say for certain how many groups have illegally gained access to the technology.
不过目前为止，在市场上大范围公开出售这种破解技术仍属非法行为，但不可避免地会有一些经过非法渠道获得这种破解技术的团体。
But other weight loss experts said the connection between cold temperatures and weight isn't yet very strong and they can't say for certain whether there's any association with obesity.
但是其他的减肥专家却说还没有发现低温和体重之间有太大的关系，他们也不确定这和肥胖是否有关系。
Experts cannot say for certain what is behind the shift, but several factors are likely to blame, including increased rates of obesity and environmental chemicals that mimic the effects of estrogen.
专家们现在不能确信是什么导致这种变化，但是包括不断增加的肥胖率和作用相当于雌激素的环境的化学物质的影响等一些因素可能是其中原因。
They say he's certain to get a nomination for best supporting actor.
他们说他肯定会获得最佳男配角奖的提名。
They say he's certain to get a nomination for best supporting actor.
他们说他肯定会获得最佳男配角奖的提名。
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