单词详解
adj.
A.抱有希望的，有信心的，积极的（be hopeful and confident）
Be positive about your future and get on with living a normal life.
要对自己的未来充满信心，继续过一种正常的生活。
B.愉悦的，有益的（be pleasant and helpful to you in some way）
Working abroad should be an exciting and positive experience for all concerned.
在海外工作对所有相关人员来说都应该是一段让人兴奋而愉快的经历。
C.明确的，果断的（ do something definite in order to deal with a task or problem）
We still don't have a positive answer as to how she died.
她究竟是如何死的，我们还未得出明确的答案。
D.有把握的，确信的（be completely sure about it）
I'm as positive as I can be about it.我对它有绝对的把握。
E.（证据）确凿的，毋庸置疑的（give definite proof of the truth or identity of something）
There was no positive evidence that any birth defects had arisen as a result of Vitamin A intake.没有确凿证据证明，摄取维生素A会导致出生缺陷。
F.（化验或试验结果）阳性的（something has happened or is present）
The blood tests were positive.验血结果呈阳性。
G.（数字）正的，大于零的（greater than zero）
It's really a simple numbers game with negative and positive numbers.
它其实就是正负数的简单数字游戏。
H.带正电的，阳极的（the same charge as a proton and the opposite charge to an electron）
An electron has a negative charge, a proton has a positive charge.
电子带负电荷，质子带正电荷。
相关单词
近义词：sure
反义词：negative
比较级：more positive
最高级：most positive
副词：positively
名词：positiveness
相关链接
词语辨析：sure, certain, definite, positive
sure, certain, definite, positive
这些形容词均含“无疑的，确信的”之意。
sure:侧重主观上对某事确信无疑。
definite:指已毫无怀疑的余地。
positive:语气强烈，指对自己的看法或作的结论的正确性有不可动摇的信念。
词语详解
1. sure:侧重主观上对某事确信无疑。
I can't be sure, but I believe it is worth trying.我不能确定,但我确信这值得一试。
2. definite:指已毫无怀疑的余地。
My vague ideas crystallized into a definite plan.我那些模糊的想法变成了一个明确的计划。
3. positive:语气强烈，指对自己的看法或作的结论的正确性有不可动摇的信念。
Can you be positive about what you saw?你能肯定你所看到的吗？
