Science and everyday life cannot and should not be separated.

科学和日常生活不能也不应割裂开来。

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It should become smaller, safer, and more economical, and should not be powered by the gasoline engine.

它应该变得更小、更安全、更节油，而且不应该由汽油发动机驱动。

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These messages are part of your survival mechanism and should not be stifled simply because emotions are unhealthy and betray your weaknesses.

这些信息是你生存机制的一部分，不应仅仅因为情绪是不良的、暴露了你的弱点而扼杀它们。

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Most of these companies say their work should only be used as models and should not be turned in as a finished work.

VOA: special.2009.04.23

It's not surprising, therefore, that people should be eating more fruits and vegetables, and our ancestors were eating much more.

因此毫无疑问,人们应该吃更多的水果和蔬菜,而我们的祖先吃的更多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

As a young person, you should be enjoying your youth and not getting dragged in to some huge investment bank.

作为一个年轻人，你应该享受你的青春,而不是拖进投行的泥潭里。

耶鲁公开课 - 金融市场课程节选

We have put our heart and soul into our show, and should not be stepped on like this.

CNN: Kanye West's last minute NYFW show angers designers

And this is not, and should not be, a Democratic priority or a Republican priority.

WHITEHOUSE: President Obama Speaks on Holding Head Start Programs Accountable | The White House

She said they were not a necessity and should not be used for cosmetic purposes.

BBC: Health Committee