All of which, of course, have a positive effect on happiness levels.
当然，所有这些都会对幸福水平产生积极的影响。
All of which would, of course, have a positive effect on happiness levels.
当然，这所有都会对幸福等级产生积极的影响。
You can actually increase your happiness levels. That's what we teach.
你可以实际提高你的幸福等级，这就是我们所要教授的。
The bad news is that we have essentially no control over 50% of our happiness levels.
坏消息是，基本上50%的幸福感水平是我们不可控制的。
After the vacation, happiness quickly dropped back to baseline levels for most people.
对于大多数人，休假结束时，幸福感迅速恢复到基线。
At higher levels of economic security, free choice has the largest impact on happiness.
在经济安全程度较高的社会中，自由选择的权利对人们快乐与否影响最大。
After that most people's levels of happiness climb.
之后多数人的快乐水平攀升。
In the middle however most people's happiness and life satisfaction levels drop.
然而在中年时期，大多数人的快乐感和生活满意指数降低了。
There are two levels of happiness, pleasure and well-being.
快乐又两个层次，欢乐感和幸福感。
In the middle, however most people's happiness and life satisfaction levels drop.
然而，在中年人中，大多数的人的幸福感和生活满意度呈下降水平。
In the middle, however most people's happiness and life satisfaction levels drop.
然而，在中年人中，大多数的人的幸福感和生活满意度呈下降水平。
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