1·Draughts help to circulate air.
通风有助于循环空气。
—— 《柯林斯英汉双解大词典》
2·Insulin accumulates in muscle tissue and enters the bloodstream, allowing it to circulate throughout the body.
胰岛素会在肌肉组织中累积并进入血液，使其在全身循环。
3·Insulin accumulates in muscle tissue and enters the bloodstream, allowing it to circulate throughout the body.
胰岛素会在肌肉组织中累积并进入血液，使其在全身循环。
4·Without gravity to help circulate air, the carbon dioxide you exhale has a tendency to form an invisible cloud around your head.
如果没有重力帮助空气循环，你呼出的二氧化碳会在你头顶周围形成一个看不见的云状物。
5·Hemoglobin, as you know, is an oxygen carrier and so red blood cells concentrate in bags of hemoglobin which circulate in your blood and they carry oxygen.
如你所知，血红蛋白是氧气的载体，所以红细胞集中在血红蛋白的袋子里，血红蛋白在血液中循环，它们携带氧气。
1·Leave a gap at the top and bottom so air can circulate.
在顶部和底部各留一点空隙，这样空气就可以流通了。
—— 《柯林斯英汉双解大词典》
2·We should often open the Windows to allow the air to circulate.
我们应当经常打开窗户以使空气流通。
3·That would have allowed air to circulate, reducing the risk of fungal spoilage and providing some protection against rodents.
这样的设计可以保证空气流通、减小真菌腐化谷物并阻止一些啮齿类动物破坏谷物。
4·A rare exception is when other currencies also circulate within the same currency area, and an increase in the quantity of the other currencies causes prices to rise in that currency.
罕见的例外情况是，该区域同时有其他货币流通，其他货币数量的增加也会引起本地货币的物价上涨。
5·Article 19 no units or individuals may print or sell promissory notes as substitutes for Renminbi to circulate on the market.
第十九条任何单位和个人不得印制、发售代币票券，以代替人民币在市场上流通。