Not only they have failed in bringing about positive change, they actually brought about negative change.

不仅没有实现正面的改变，实际上是带去了负面的改变。

哈佛公开课 - 幸福课课程节选

both positive and negative in a variety of situations.

正面和负面，各种语境中。

I wish 课堂 - SpeakingMax英语口语达人

If you support Bush you're going to be looking for good news about Bush, if you don't support him you'll be looking for bad news.

如果你支持布什,你就会寻找关于布什的正面新闻，如果你不支持布什，就会寻找他的负面新闻。

耶鲁公开课 - 心理学导论课程节选