Anne has been ill but now she's back in circulation.

安妮一直生病，但现在又回来参加社交活动了。

《牛津词典》

Iron is released from the heme moiety and either stored in the macrophage as ferritin or hemosiderin, or released into the circulation for transport back to the marrow.

铁元素从血红素中释放出来，要么转化为巨噬细胞中的铁蛋白或含铁血黄素，或通过血液循环回流进入骨髓。

youdao

Nissan cars will also come with heated seats that incorporate NASA research to enable better blood circulation and reduce the chances of back pain during long drives.

日产汽车还将配备加热座椅，这是与美国航天局共同研制的，可以改善血液循环，减少因长途驾驶而产生的腰背疼痛。

youdao

"It was pretty much of a shock when I got here." "I mean,if you're going to talk to some of your friends of some of the stuff you saw and you can't describe the smells, the feeling of the heat on your body and the sweat running down your back, the smell of the pus that hits your nose of unwashed bodies in a closed room, the circulation, the smell of your own panic when you're not sure what to do" Other doctors in the film echo Dr.Krueger's sentiments.

VOA: standard.2010.06.29

These cells around the outside form the interface, the placenta, where the maternal blood circulation meets the embryonic circulation and nutrients are passed back and forth that way in a very highly regulated and important way.

外层的细胞形成接触面,即胎盘,是母血与胎血,进行血液交换,及营养物质交换的场所,整个过程高度有序并且非常重要

耶鲁公开课 - 生物医学工程探索课程节选

Suffering the worst circulation decline among the nation's 25 largest papers was the Dallas Morning News, which saw average daily circulation plummet 14% to 411, 919 due to recent decisions by parent Belo to scale back circulation beyond the paper's immediate readership area and to reduce so-called "third-party" circulation, which refers to papers that are distributed to hotels and schools.

FORBES: Magazine Article

The resale program has pumped some unused tickets back into circulation, but it is lightly used.

WSJ: Menu

Potentially more effective is a new scheme to get the vast amounts of gold already in India back into circulation.

NPR: Baubles To Bars: India Gold Culture Defies Curbs