| 1. | I think i ' ve got them all , but i ' m not sure
我想我都已经拍齐了，但我不能肯定。 |
| 2. | I ' m afraid i ' m unsure of the facts of the case
很遗憾我不能肯定这件事的事实。 |
| 3. | I can ' t imform you definitely when i am coming
我不能肯定地告诉你我什么时候来。 |
| 4. | I can ' t tell you definitely when i will come
我不能肯定地告诉你我什么时候来。 |
| 5. | I ' m not certain whether he will pass the exam
我不能肯定他考试是否能够及格。 |
| 6. | I ' m not very sure . i ' ll give you a call later
我不能肯定。过些天我会打电话给你。 |
| 7. | I am not assure to tell you when can i come
我不能肯定地告诉你我什么时候来。 |
| 8. | I ' m not even sure it was the acheron we sighted
我不能肯定我们看见的就是地狱神号 |
| 9. | I cannot tell you when i will come for sure
我不能肯定地告诉你我什么时候来。 |
| 10. | I am not sure to tell you when i came back
我不能肯定地告诉你我什么时候来。 |
