Translate the following passage into Chinese.

We are all through our lives, a burden to others. From the moment of conception, we are nourished and nurtured by others. As adults we learn to pay for or negotiate our mutual needs, but the fact remains that it takes an invisible army of other people to grow our food, clean our clothes, maintain our roads, fuel our furnaces. When we marry, we accept another’s pledge to stick with us in sickness and health, prosperity and poverty. They load we lay on others only becomes more visible, less deniable, as we age.
Our still relatively new culture, which makes both living anywhere and living longer possible, will no doubt devote a good deal of public resources and private energy in the near future to figuring out how best to care for its older members. Should I live another 20 years, I will be a burden—to my spouse or my children or the state, if not all three. What I most want to learn during decades, therefore, is not how to live longer, not necessarily even how live a healthier or more productive life, but how best to be a burden. One that might also be a blessing.