1.
It was certain/ I thought it certain that they would be late.
肯定[我肯定]他们要迟到.
2.
answer in the affirmative [ negative ]
作肯定[否定]回答
3.
Give sb. credit for sth.
为。。。赞扬[肯定]某人
4.
"Certainly," said Carrie.
“当然肯定，"嘉莉说。”
5.
Uh. I'm not sure if I agree.
呵，我不敢肯定。?
6.
"I will" is an affirmative.
"我愿意"是肯定语。
7.
Two noes make a yes.
否定的否定就是肯定。
8.
An affirmative statement or vote.
肯定的陈述肯定的陈述或表示赞成
9.
Axiom4: If a property is positive, then it is necessarily positive.
公理4:一个肯定性质是必然肯定的.
10.
The only certainty is that nothing is certain.
唯一可以肯定的是：凡事都难以肯定。
11.
I don't konw for sure, it depends.
我不能肯定，视情形而定。
12.
The principal upheld the teacher's decision.
校长肯定了老师的决定。
13.
Our achievements in eliminating counter-revolutionaries must be affirmed.
一定要肯定肃反的成绩。
14.
Two negatives make an affirmative.
两个否定构成肯定。
15.
an affirmative constructed from two negatives.
两个否定构成的肯定。
16.
To be undecided or skeptical.
不确定不能肯定或怀疑
17.
Are you sure you've got that?
您肯定听明白了吗？
18.
That won't be warm at all,"
那样的毯子肯定不暖和。”