有些人天生比其他人更热情，更积极，而且许多研究表明，在很大程度上基因决定着我们的快乐指数。
Some people are naturally more optimistic and positive than others, and some studies suggest that, to a certain degree, our genes determine happiness.
有些人天生比其他人更热情，更积极，而且许多研究表明，在很大程度上基因决定着我们的快乐指数。
Some people are naturally more optimistic and positive than others, and some studies suggest that, to a certain degree, our genes determine happiness.
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