生活英语手册 104（6.促进理解－6.10肯定与否定）

　　你肯定吗？
Are you sure?
你有成功的把握吗？
Are you sure about your success.
你肯定他会来吗？
Are you sure he'll come?
我肯定。
I'm certain.
我确信他是正确的。
I'm positive he's correct.
我百分之百肯定他爱上了你。
I'm one hundred percent sure he's falling in love with you.
绝对肯定。
Absoulutely certain.
我敢打赌。
I bet¹.
我与你打赌一百元。
I bet you one hundred yuan.
一定是这样。
It can't be otherwise.
我对此确信无疑。
I have no doubt about it.
吸烟有害健康是确信无疑的。
It's certain that somking is harmful to health.
我不肯定。
I'm not sure.
我不敢肯定。
I can't be certain.
我不肯定他是否胜任这工作。
I'm not sure if he is qualified² for that job.
我怀疑他们是否能按时完工。
I doubt if they can finish the job in time.
我不敢肯定的说。
I can't say for sure.
我说不准。
I really couldn't say.
我下不了决心。
I can't make up my mind.
这很难说。
That's hard to say.
我觉得脑里一团糟。
I feel in such a mess.

1 bet   

v.打赌，以(与)...打赌；n.赌注，赌金；打赌

参考例句：

• I bet you can't do this puzzle.我敢说，你解决不了这个难题。
• I offered to bet with him.我提出与他打赌。

2 qualified   

adj.合格的，有资格的，胜任的，有限制的

参考例句：

• He is qualified as a complete man of letters.他有资格当真正的文学家。
• We must note that we still lack qualified specialists.我们必须看到我们还缺乏有资质的专家。