A free-rider uses the public good without helping to create or support it.

VOA: special.2009.03.03

If you have been working and are still working on problem Set One, do realize that a good deal of support and assistance is available to you.

如果你们一直在做并且还在做,习题集1，请认识到，可以寻求,其他人的支持和帮助。

哈佛公开课 - 计算机科学课程节选

To require him to pay, let's say, a third of his earnings to the government to support good causes like food and health care and housing and education for the poor, that's coercion, that's unjust.

假设，让他拿出三分之一的收入,交给政府来支持公益事业,为穷人提供食物，医疗保障，住房和教育，这就是强迫，是不公平的。

耶鲁公开课 - 公正课程节选

"I think the prospects are good." "There are a lot of players that have come in - and there's a lot of support from organizations such as the WHO I think that creates a good environment where people can work and make progress in getting together a new vaccine."

VOA: standard.2010.07.12

"I think that the proposal that the President made in Geneva to have Iran withdraw its enriched uranium, or a good portion of it, outside Iran is a positive first step in that direction and I support and appreciate the President's ongoing efforts to unite the international community to address the challenge of Iran's attempts to become a nuclear military power,"

VOA: standard.2009.10.30