1. 我不确定,但我认为这件事还应该多加讨论。
I am not sure. but i think this thing need to more discussion
2. 我不太肯定,但我记得期末考试是在下个周一早晨。
I am not sure. but i think the final examination will be hold in the morning of next Monday
3. 我不太确定,但我想我们可以跟老板再讲讲价。
I am not sure. but i think we can bargain with the boss again.