in circulation

基本解释

We must constantly adjust the amount of money in circulation.
我們必須對貨幣的流通不斷進行調節。
《新英漢大辤典》
The number of credit cards in circulation has declined by almost a fifth.
流通中的信用卡數量也下降了將近五分之一。
To clarify, what matters is not the amount of dollars in circulation but the amount of capital.
說白了，在資本循環中重要的不是美元的數量而是資本的數量。
yyzznn2008.blog.163.com

The findings are published in Circulation: Journal of the American Heart Association.
Censorship only comes into play once a text has actually been in circulation for a while, only after a number of readers have found a published text to pose a threat.
控制僅僅是一本書已經出版發行一段時間,一些讀者已經發現這印刷的文本,造成威脇時才起作用的。
耶魯公開課 - 彌爾頓課程節選
Please go get the clicker at the Bass Circulation Desk, and they should have enough everybody in the class.
去巴斯借書処領取表決器吧,應該每人都能領取到一個
耶魯公開課 - 關於食物的心理學、生物學和政治學課程節選

The US Federal Reserve has a system to control the amount of currency in circulation.
FORBES: Yes, Spanish Crisis Has Triggered the Euro's Endgame