您要查找的是不是：
- I am sorry,but I am not sure when she'll be back. 对不起，我不知道她什么时候回来。
- I am sorry, but I am not sure when she'll be back. 对不起，我不知道她什么时候回来。
- I am not sure if that will be necessary. 也许没有必要吧。
- I am not sure all of us will be able to attend. 我不确定我们能全体出席。
- I am not sure you are correct about that. 我不能肯定你在这件事上是对的。
- I am not sure when he is leaving. 我不能肯定他什么时候走。
- I think he will agree, but I am not sure. 我想他会同意，但我没有把握。
- We are not sure yet. Probably in St.Albans. 还说不准儿，也许是在圣奥尔本教堂举行。
- He is either a clerk or a worker. I am not sure. 他不是职员便是工人。我不大清楚。
- I am not sure I agree with you. It is not too bad. 我不敢说同意你的意见。这部电影并不太糟。
- I am not sure how to compile a dictionary. 恐怕我不会编词典。
- I am not sure just when he will come. 我不敢说他究竟什么时候来。
- I am not sure what time you can reach him. 我吃不准你什么时候可以打电话找到他。
- I am not sure whether I am going to leave. 我不知道我是不是要离开。
- I am not sure if he has a clean slate. 我不知道他的历史是不是清白的。
- Fight no battle you are not sure of winning. 不打无把握之仗。
- I am not sure,but I'll try my best. 我没把握，不过我将尽力而为。
- I was not sure you were correct about that. 我不能肯定你在这件事上是对的。
- I am not sure whether I have locked the door. 我没把握是否锁了门。
- I am not sure, maybe five thirty. 我不能肯定，可能五点半左右。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
