positive单词相关例句：
With close friends in their lives ,people develop courage and positive attitudes.Teenagers have the moral support to assert their individuality;the elderly approach their advanced years with optimism and an interest in life.——Ralph Waldo Emerson. American thinkerA man is either free or he is not. There cannot be any apprenticeship for freedom.I Baraka. French Writer  人要么是自由的，要么是不自由的，从来就不存在过渡阶段。法国作家巴拉卡 A.  

He has a positive attitude towards life.

他对生活持有积极的态度。

Without doubt, the national bourgeoisie tends to vacillate, but we should, nevertheless, make use of its positive side, uniting with it as well as struggling against it.

民族资产阶级当然是动摇的，但是要利用它的积极的一面，要有团结有斗争。

A muscle biopsy is positive for fungus.

肌肉活组织检查发现有真菌侵犯。

In a positive test, the pelvis will dip on the contralateral side.

阳性结果中，骨盆会向对侧倾斜。

Cathode rays are attracted by a positive charge.

阴极射线被阳电荷所吸引。

An electron has a negative charge,a proton has a positive charge.

电子带负电荷,质子带正电荷。

Flowers portray love, happiness, joyful the other positive emotions.

花象征着爱，幸福，欢乐以及积极的情感。

An electric terminal with positive polarity.

带正极性的一个电极。

Many of the physical changes that energize you to get out of the way of the bus are the same ones at work in more positive situations.

许多给你提供能量躲开汽车的那些生理变化和在比较积极的处境中出现的相同。

negative单词相关例句：

I read an article about the negative effects of slavery.
我读了一篇文章，讲述了奴隶制度的消极影响。

There is also a negative aspect to hotel public relations.

对于旅馆公共关系，还有一个相反的方面。

You just have to block out the negative and think of the positive.

只要你封闭消极的想法并且知想一些正面积极的。

But he and many other specialists still assume the economy will slide into negative territory.

但是他和许多其他的专家仍然假定经济将慢慢地陷入不好的境地。

An electron has a negative charge,a proton has a positive charge.

电子带负电荷,质子带正电荷。

Being jittery about the interview can result in cold, clammy hands, which create a negative impression.

情绪紧张地来参加面试会使妳伸出的手冰冷潮湿，会给雇主留下负面印象。

An example of negative eugenics would be the attempt to eradicate a harmful recessive gene.

消极优生学的范例是试图破坏一种对人体有害的隐性基因。

And if they continued to lionize him in a public fashion, that these kinds of public demonstrations can only have a profoundly negative effect on our relationship.

而且，如果他们继续大张旗鼓地欢迎此人，这种公开展示的方式只能对我们的关系产生深远的负面影响。

Estrogen is considered a female hormone but it also plays a role in the development of the prostate gland. The hormone has both positive and negative effects.

雌激素被认为是女性激素，但它在前列腺的发育中也起一定的作用。该激素有正、负双向效应。