[] the passing or spreading of sth from one person or place to another流传；传播◆the circulation of information/ideas信息的传播；观念的流行 [] the use of coins and notes as money（货币的）流通◆There is a large amount of forged money in circulation.有大量的假币在流通。◆The notes were taken out of circulation.这纸币已停止流通。 [, ]the usual number of copies of a newspaper or magazine that are sold each day, week, etc.（报刊）发行量，销售量◆a daily circulation of more than one million每日发行量超过一百万份velocity of circulation