Maybe we just need to sacrifice something, another friend. The friend harder than we or the people who want to help, like the sacrifice our time to benefit society.
Sometimes we have to sacrifice some other friends. Friends troublesome than we Or people who need help, such as sacrificing our time to benefit society.
Maybe we have to give up some other friends. A friend who worked so hard on us, or someone who needs help, for example, sacrificing our time for the benefit of society.