Smiling and laughing has actually been shown to relieve tension and stress.

微笑和大笑确实已证明能缓解紧张和压力。

《柯林斯英汉双解大词典》

The treatment will be tried out on human beings only after it has been shown to be safe and foolproof in animals.

该疗法只有在动物身上证明安全、万无一失后才会在人体上试用。

《柯林斯英汉双解大词典》

Geo-engineering has been shown to work, at least on a small localised scale.

地质工程已被证明是有效的，至少在一个小的局部范围内。

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When the large painting was shown to the public, thousands of people paid money to see its strikingly real style.

VOA: special.2009.05.01

You remember, thalidomide is the drug which was actually really most used as sleeping aid that when pregnant women took were shown to produce deformities, children who were born without limbs for example.

你应该知道这种药品,实际上它是用来辅助睡眠的,但是，如果孕妇吃了这种药,就可能造成胎儿畸形，可能生出来的婴儿是没有四肢的。

普林斯顿公开课 - 人性课程节选

Any genocidal movement that has left behind a written record has been shown to use the mechanism of disgust to dehumanize people and make them easier to kill.

任何有记录的种族灭绝运动,都利用过反感这个手段,来抹杀人性，使得更容易杀害他们。

耶鲁公开课 - 心理学导论课程节选

That has been shown to improve correct diagnosis and reduce deaths of young children.

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Professor Davey Smith said experiments on animals had also been shown to bear this out.

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"Years ago they made mistakes, but it wasn't shown to millions of people, " he said.

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