circulation

[.sə:kju'leiʃən]

n.流通, 循环, 发行量, 消息传播

例句与用法：

The newspaper's circulation has trebled since last year.

去年以来该报的发行量已增加到原来的三倍。

The old coins have been withdrawn from circulation.

旧硬币已经收回不再流通了。

Harvey discovered the circulation of the blood.

哈唯发现了血液循环。

These 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。

词形变化：

形容词: circulative | 名词: circulator | 动词过去式: circulated | 动词过去分词: circulated | 动词现在分词: circulating | 动词第三人称单数: circulates |

详细释义：

n.

1. 循环, 环流; 运行[U][S1]

We observed the circulation of blood in frogs.

我们观察了青蛙的血液循环。

2. (货币、消息等的)流通, 传播[U]

Many forged notes are in circulation.

许多假钞在流通。

3. (报刊等的)发行量, 销售量[S]

This paper has a circulation of more than a million.

这一报纸的发行量达一百多万份。

4. 通货, 货币[U]