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1·A free enterprise economy is based on the principle of voluntary association and exchange.

私有经济的基础是自发联合和交换。

2·The well-known Baking Club sold homemade biscuits while the Art Voluntary Association sold their decorative jelly bottles.

小有名气的烘焙社出售美味的自制饼干，而艺术社出售自己创作并装饰的星空瓶。

3·The International Air Transport Association (IATA) is a voluntary association of international airlines that sets routes, fares and other standards of service.

国际航空运输协会（IATA）是国际航空公司自发组织的协会，负责设定线路，制定票价，和其它服务标准。

4·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.

不管是在月球上，还是其它任何地方，美国的旗帜除了代表着人们在自由市场，通过自愿联合，相互合作的方式来实现各自的目标外，一钱不值。

5·Prevalent in the rural Sanchuan areas of the Minhe County, Qinghai Province, the Mani Association is a voluntary folk group mainly consisting of the middle-aged and the old people.

嘛呢会普遍存在于青海省民和县三川地区的土族村落，是农村中老年居民自愿组成的民间团体。

6·The fruit association is not just voluntary organization of the fruit grower.

水果协会还不是果农的自发组织。

7·The Alzheimer's Association is the leading voluntary health organization in Alzheimer care, support and research.

老年痴呆协会是主导的义务保健组织在老年痴呆患者关心、照顾和研究。

8·China leads the world in the research on male contraception techniques, some of which have been listed as the ones to be promoted by the world Association of Voluntary Surgical contraception (AVSC).

中国的男性节育技术研究已处于世界领先地位，有的已被世界志愿手术节育协会列为推广技术。

9·The association between current return and future earnings is positively related through voluntary disclosure level;

股票投资收益与未来会计收益关系的正相关程度与自愿信息披露水平呈正相关关系；