The key to happiness lies in better relationships, knowledge and above all health.

幸福的关键在于更良好的人际关系，更丰富的知识，但是，健康才是最为重要的。

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You are the key to your own happiness, so go ahead, unlock it once and for all.

你是自己快乐的钥匙，因此，往前走，一劳永逸地打开它。

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In fact, 73% of people interviewed put their relationship with colleagues as the key factor contributing to happiness at work, which is a very high percentage.

事实上，73%的受访者把他们与同事之间的关系作为工作中快乐的关键因素，它所占的比例很高。

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Happiness is the key to success.

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The key to happiness is to dwell as little as possible on that downside.

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LONDON, England (CNN) -- The key to happiness, productivity and popularity at work has been revealed.

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