“voluntary association”簡單造句，voluntary association造句子

The American flag, on the moon or anywhere else, is worthless except as a symbol, a symbol of men achieving their ends by voluntary association, cooperating through mutual exchange in a free society.

A small amount of the sturgeons' eggs have been kept for further analysis while the rest has been sent to voluntary associations, charity kitchens and old people's homes.

The International Air Transport Association (IAIA) is a voluntary association of international air-lines that sets routes, fares and other standards of service.

In religion, the principle of voluntary association struck quick and effective root.