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Confidentially, I am not sure they understood.私底下说，我不能肯定他们已经明白了。It's not definite that they'll accept our offer, but there's a sporting chance.不能肯定他们一定会接受我们的报价，不过还是有可能的。The man you're looking for could be Keith, but I'm not certain.你要找的人可能是基思，但我不能肯定。But legal experts are not sure if such a charge can stick.但法律专家们不能肯定这一指控是否成立。Investigators are still not sure whether the damage was intentional or due to careless work.调查人员仍然不能肯定损失是故意造成的，还是不小心造成的。She doubted his ability to succeed.她不能肯定他是否有能力取得成功。Astronomers were still uncertain whether the Earth travelled around the Sun or vice-versa.那时的天文学家仍不能肯定是地球绕着太阳转，还是太阳绕着地球转。Experts are not sure what is causing the recent rash of mountain lion sightings.专家不能肯定是什么原因导致美洲狮最近频频现身。I am not sure if we eventually stumped up enough cash to get out of the trouble.我不能肯定为摆脱这件麻烦事我们出的钱是不是总算够了。The Party seems to be unsure which of two opposing political philosophies to follow.该政党似乎不能肯定两种对立的政治思想中该信奉哪一种。I think she's a teacher, but I couldn't say for certain.我想她是位老师，但不能肯定。She shot him a quick glance as if unsure whether he was friend or foe.她扫了他一眼，似乎不能肯定他是朋友还是敌人。I am not sure whether this was courage or pig-headedness.我不能肯定这是一种勇气，还是一种固执。I am still uncertain whether he will come today.我仍不能肯定他今天是否会来。The economy may improve next year, but it's not something you can rely on.明年经济可能会好转，但也不能肯定是这样。They're unsure of their daughter's readiness for kindergarten.他们不能肯定女儿是否做好了上幼儿园的准备。At the conclusion of the book, the reader is still not certain whether Markham is guilty or not.在书的结尾，读者仍不能肯定马卡姆是否有罪。I don't know for certain if she's coming.我不能肯定她是否会来。The president's re-election is now far from a sure thing.总统能否再次当选还远不能肯定。I am not certain whether he will come today.他今天来不来，我不能肯定。The outcome of the election remains in doubt.选举的结果仍然不能肯定。I was not certain I had heard aright.我不能肯定没有听错。I wasn't sure if he was still alive.我不能肯定他是否还活着。I'm uncertain whether to go or not.我不能肯定是去还是不去。It is not at all certain that Christopher Columbus was the first European to discover America.克里斯托弗·哥伦布是不是第一个发现美洲的欧洲人，这根本不能肯定。I am not sure that this is sound democratic practice.我不能肯定这是正确的民主行为。 |