通过构建低碳城市可以有效缓解环境压力，改善并优化人们的居住空间，而城市绿地系统在低碳城市的构建中则扮演着不可替代的角色。
The low carbon city could ease environment pressure, improve the residential space, the urban space system act a irreplaceable role in the construction of low carbon city.
大多数人并不理解有关幸福的基本的科学事实——以什么创造和维持——人们因此并不花金钱在能优化幸福的方式上。
Most people do not understand basic scientific facts about happiness, about what creates and sustains it, and they consequently do not spend money in ways that optimize their happiness.
关键词优化中最重要的任务是，判断页面对于人们实际要搜索的关键词是否是优化的，也就是在针对这些关键词的搜索结果中页面是否会获得高排名。
The most important task of keyword optimization is to determine whether your pages are optimized for and rank highly in search engines for keywords that people actually want to find.
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