circulation是可数名词吗

circulation是可数名词，复数 circulations

circulation

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**流通。

He takes regular exercises to improve his blood circulation.

他经常锻炼来改善血液循环。