Fulfillment of these purposes may generate various health benefits .

这些行为带来了满足感，对健康有益。

In these cases , masturbation allows the experience of sexual fulfillment .

在这种情况下，自慰使我们能够体验到对性爱的满足。

Costs of fulfillment for public-domain works disappear in this approach .

而公有领域的作品以这种方式实现价值的成本降低为零。

We 're always reaching for 100 percent happiness and fulfillment . But the reality is that life is not perfect .

我们总是追求百分百的快乐和成就，但是现实是人生并不完美。

By living the past we will never be able to find true happiness and fulfillment in our lives .

通过生活在过去的方式我们将永远不可能找到生活中真正的幸福和满足。