circulation作“流通”解时,可指体内血液循环,水、空气的流通,还可指货币等的流通。指报纸杂志等的“发行量”时,常用单数形式。
His father has a bad circulation.他父亲血液循环不好。 A number of forged banknotes are in circulation.市面上有一定数量的伪钞在流通。 The ideas have been in circulation for some time.这些想法已经流行了一段时间。 This magazine has a large circulation.这本杂志发行量很大。