On the social level, improvement in the quality of life can contribute greatly to social harmony.

在社会层面，生活质量的提高非常有助于社会和谐。

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Buildings contribute to human life when they provide shelter, enrich space, complement their site, suit the climate, and are economically feasible.

建筑为人类提供庇护所，丰富活动空间，拓宽场地，适应多变气候，并且也具有经济可行性，从而为人类生活做出贡献。

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When I think about the proportions which genetics, life circumstances and intentional activities contribute to happiness, it makes me think about our priorities in life.

当考虑到基因、生活环境和意向活动对幸福感的作用大小时，我想到了在生活中我们的优先选择权。

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The way that Muslims are both integrated in and contribute to American life, in our counterparts in Europe I think is a stark example for this.-Right.

穆斯林既融入到了美国生活中,又为美国生活做出了贡献，这都好于欧洲一些国家,我认为这就是一个明显的例子-是的。

普林斯顿公开课 - 人性课程节选

Even when stacked up against other factors that contribute to life satisfaction, living in a greener area had a significant effect, the study said.

BBC: Green spaces boosts wellbeing of urban dwellers - study

"We can boast that we're a leader of our society, that therefore we have something to contribute to the democratic life of this country, to this democratic Republic of South Africa, " Mr Zuma said after his win.

BBC: ANC re-elects Jacob Zuma as leader

They rely instead on the flash-memory chips used in iPhones and iPads that contribute to longer battery life and lighter weight and allow computers to boot up faster.

WSJ: Apple Takes Wraps Off Mac App Store