circulation是可数名词吗?
circulation是可数名词,复数 circulationscirculation
美 /ˌsɜːrkjəˈleɪʃn/
英 /ˌsɜːkjəˈleɪʃn/
n.
流通,传播;循环;发行量;(图书的)借出
双语例句:
The country has taken measures to prevent the circulation of counterfeit currency.
这个国家采取了措施来阻止假币流通。
He takes regular exercises to improve his blood circulation.
他经常锻炼来改善血液循环。