So the need to quickly recognise things that could be helpful or harmful could have had a great influence on rock art and explain why some images are more common across cultures than others.

因此，快速识别事物是有益还是有害的需求可能对摇滚艺术产生了巨大的影响，并解释了为什么一些形象在不同文化中比其他的更常见。

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"She knows these things are bad for her, me and my husband David have discussed how harmful it is with her. But the cravings are too much for a three year old to handle, ", she added.

她这位母亲补充道：“她知道这些东西对她有害，我和我丈夫大卫都和她讨论过这些东西对她的害处，但是对一个3岁的孩子来说，（控制）这种渴望太难了。”

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People often look for similarities, even between very different things, and even when it is unhelpful or harmful to do so.

人们经常寻找相似处，不管两个事物有多么不同，即便这样做没有意义或是有害的。

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Ged Flynn - from the suicide prevention charity, Papyrus - said the findings support the point that people are less likely to end their lives, if access to harmful things is made harder.

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Their proposal breaks the bipartisan agreement on spending cuts that we reached just a few months ago, and makes harmful cuts to things like education that strengthen middle-class security.

WHITEHOUSE: Press Briefing

Bloomberg has become known nationally for his personal crusade to rid the city of things he deems harmful and unnecessary, such as salt, trans fats and the ability to smoke.

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