Then there are cells that secrete hormones into circulation and regulate the functions of other cells throughout the body.

而有些细胞释放激素进入体循环中，调节全身其它细胞的功能。

We don't want that note going back into circulation.

我们不希望那张纸币重新流通。

They can differentiate into red blood cells, white blood cells, and platelets, and send about hundreds of billions of new blood cells into circulation every day.

它们可以分化成红细胞、白细胞和血小板，每天能将数千亿新生的血细胞投入人体循环。

In the following years, hundreds of thousands of dollars worth of Australian fake notes — all with watermark and metal threads — passed into circulation, undermining confidence in Australia's new money.

接下来的几年里，成千上万不同币值的假澳元——都包含水印和金线——进入流通领域，危害着澳大利亚新钞的信用。

Mannitol or glycerol might be given as a way to try and reverse the osmotic gradient with cerebral edema and essentially pull some of this fluid from the brain back into circulation.

甘露醇或丙三醇或许能改变脑水肿的渗透梯度，让液体从脑部回到血液循环中。

Bitcoin mining involves getting  powerful computer systems to solve complex mathematical sums, which  creates new units of currency that are then entered into circulation on  this thing called the blockchain.

比特币挖矿涉及获得强大的计算机系统来解决复杂的数学问题，这会创建新的货币单位，然后在称为区块链的东西上进入流通。

By a mail-in ballot available at post offices in April, the public will decide whether a younger, leaner Elvis or an older, plumper Elvis is the one that goes into circulation.

通过四月份在邮局进行的邮寄选票，公众将决定是年轻、瘦弱的猫王还是年长、丰满的猫王进入流通。

Though a vaccine could go into circulation by the end of the year, health experts believe it won't be until Q3 of 2021 that a majority of the country is vaccinated.

尽管疫苗可能会在今年年底投入使用，但卫生专家认为， 要到 2021 年第三季度， 该国大部分地区才能接种疫苗。