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1·Positive and negative experiences form a child's character.

正反两方面的经历都影响儿童性格的形成。《牛津词典》

2·We need both positive and negative feedback from our customers.

我们需要顾客正反两方面的反馈意见。《牛津词典》

3·It measured positive and negative emotions independently.

它分别评测了积极和消极情绪。

4·By comparison, Americans are often frank about displaying both positive and negative emotions on the street and in other public places.

相比之下，在大街上或其他公共场所，美国人往往能直白地表现出积极和消极情绪。

5·Make a comparison between these positive and negative effects, and you will find that we should spend one or two hours a day doing exercises.

比较这些积极影响和消极影响，你就会发现，我们每天都应该花一两个小时进行锻炼。

6·Feeling both positive and negative emotions is a natural part of being human.

感受积极和消极的情绪是人类天性的一部分。

7·The positive and negative di-mon mating hybrids are homogenous heterokaryons in Lentinula edodes.

香菇双单杂交后代是同质异核体。

8·Two sides, positive and negative.

两方面，好的和坏的。

9·There are positive and negative terms.

既有正的，也有负的。

10·How many positive and negative words do you count?

你数出了多少个积极词和消极词？

正反

1·We need both positive and negative feedback from our customers.

我们需要顾客正反两方面的反馈意见。《牛津词典》

2·I was going to comment earlier on the article, thinking it was going to be this thoughtful, in-depth look at how technology is impacting people's lives for both the positive and negative.

起先我以为这会是篇有深度的文章，能够从正反两面探讨技术对人类生活的影响，原本打算对它进行评论的。

3·We need both positive and negative feedback from our customers?

我们需要来自顾客的正反两面的反馈。

4·The positive and negative functions come along, but the positive function is always dominant.

选举的正反功能相伴而生，但正功能永远是主要的。

5·One ought to draw the positive and negative historical lessons.

大家应当吸取正反两面的历史教训。