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。

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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》

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。

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But I always looked at it as a positive. Hey,I can bridge both worlds."

VOA: standard.2009.12.11

both positive and negative in a variety of situations.

正面和负面，各种语境中。

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Both Langer and Stone were my physicist advisors, introduced me to the field of positive psychology into this research.

两位都是我的物理学导师，带我进入了积极心理学领域的研究。

哈佛公开课 - 幸福课课程节选

Sessions notes that the mood of the country had both positive and negative reverberations.

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Complex systems such as climate and the financial markets have both positive and negative feedback.

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And, for the latest 12-month period, we required both positive earnings and positive excess cash flow.

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