您要查找的是不是：
- I'm not certain of the truth of the matter. 我不相信这种情况是真的。
- I am not certain about the result. 我对结果没有把握。
- I am not certain whether it is true or not. 我没有把握这是否如此。
- The dose commitment is not certain. 剂量负担是不能肯定的。
- I'm not certain whether it is true or not. 我没有把握这是否如此。
- I'm not certain about the result. 我对结果没有把握。
- The company's financial position is not certain. 这家公司的财务状况不明朗。
- I'm not certain that he will accept the proposal. 我不能肯定他会接受这建议。
- I'm not certain who will be sent to Belgium. 派谁去比利时,我不清楚。
- They were not certain whether to go or not. 他们不能确定该不该去。
- He is not certain of what to do. 他拿不准做什么好。
- He seems not certain of his way. 他似乎举棋不定。
- I'm not certain where this ought to be put. 我不能确定这东西该放在什么地方。
- It is not certain how the earth began. 地球是怎样起源的还没有定论。
- It is not certain when it will take place. 不能确定这事什么时候会发生。
- It is not certain; it is just conjecture. 事情尚未确定，只不过是个猜测而己。
- Kalgan: It's possible, but not certain. 有可能的，不过不确定。
- Nesta could rest, but it is not certain. 内斯塔将会休息，但是这还不确定。
- I am not certain I have grasped what you meant. Is it(that) you are not satisfy with your present job? 我不能肯定已经领会您的意思。是不是您不满意您现在的工作。
- I'm not certain whether the appointment has been put off or not. 我说不准那个约会是否延期了。
