名詞 circulation:

1. the dissemination of copies of periodicals (as newspapers or magazines)
2. movement through a circuit; especially the movement of blood through the heart and blood vessels
3. (library science) the count of books that are loaned by a library over a specified period
4. number of copies of a newspaper or magazine that are sold
5. free movement or passage through a series of vessels (as of water through pipes or sap through a plant)
6. the spread or transmission of something (as news or money) to a wider group or area

1. The newspaper's circulation has trebled since last year.
   去年以來該報(bào)的發(fā)行量已增加到原來的三倍。
2. The old coins have been withdrawn from circulation.
   舊硬幣已經(jīng)收回不再流通了。
3. Harvey discovered the circulation of the blood.
   哈唯發(fā)現(xiàn)了血液循環(huán)。
4. These ideas have been in circulation for some time.
   這些想法已經(jīng)流行了一段時(shí)間。
5. This magazine has a large circulation.
   這本雜志發(fā)行量很大。

cir.cu.la.tion

n.Abbr. circ.（名詞）縮寫 circ.
Movement in a circle or circuit, especially the movement of blood through bodily vessels as a result of the heart`s pumping action.
循環(huán)：沿環(huán)形或回路運(yùn)動(dòng)，尤指血液在心臟泵壓作用下沿身體內(nèi)血管的流動(dòng)

Movement or passage through a system of vessels, as of water through pipes; flow.
流動(dòng)：沿容器系統(tǒng)的運(yùn)行或穿行，如水沿管道流動(dòng)；流動(dòng)
Free movement or passage.
自由移動(dòng)或通行
The passing of something, such as money or news, from place to place or person to person.
流通，散布：一些事物從地區(qū)到地區(qū)或從人到人之間的傳遞，如金錢或消息

The condition of being passed about and widely known; distribution.
分配：被傳向四方并廣為人知的狀態(tài)；分配
Dissemination of printed material, especially copies of newspapers or magazines, among readers.
散發(fā)：印刷品的散發(fā)，尤指在讀者間報(bào)紙或雜志印刷品的散發(fā)
The number of copies of a publication sold or distributed.
發(fā)行量：賣出或分發(fā)的發(fā)行物的數(shù)量