Most show little sign of wear and tear suggesting they were never in circulation.

许多没有磨痕迹，可能是尚未流通起来。

The value of knowledge and the return on the public investment in research depends, in part, upon wide distribution and ready access.

在某种程度上来说，知识价值和公共投资能否取得较高回报，取决于是否能够得到广泛流通、人们是否能够比较容易地获取这些研究成。

Money circulates as it goes from person to person.

当金钱从一人传到他人手上，钱流通便发生了。

Outdoors there is very good air circulation that will quickly diffuse the virus particles.

室外空气流通很好，病毒粒子会迅速扩散。

Acupuncture points are stimulated to balance the circulation of qi.

通过刺激穴位从而平衡气流通。

Asthma can lead to inflamed airways which obstruct oxygen.

哮喘会导致气道发炎，进而阻碍氧气流通。

No, no, we need air circulation, Beth.

不，我们需要空气流通，贝丝。

726. The currency curriculum made the excursionist incur loss of time and money.

流通（货币）课程使得旅行者招致了时间和金钱。

And some of you may not even have a vent or a range hood, in which case your best option is to open a window or a door to get the air circulating.

有些人可能连通风口或抽油烟机都没有，在这种情况下，最好办法就是打开窗户或门，让空气流通。

Now it's also supposed to be fast.

Libre 货币流通方式很快。

The government keeps a steady supply of approximately 2 billion bills in circulation at all times.

政府始终保持着约 20 亿张流通钞票稳定供应。

Malnutrition kills more than 3 millions children annually. Three hundred million people are afflicted by Malaria globally. All over the world, we constantly see the problem of poverty, illness and lack of resources impeding the flow scientific information.

每年都有三百万儿童死于营养不良。全球有三亿人收到疟疾影响。在全世界，我们能看到无数贫困问题，病痛问题以及资源匮乏导致科学信息不流通问题。

More blood pumping throughout your system ensures more blood to your auditory system.

血液在全身流通也确保更多血液流向听觉系统。

And yes, there are concerns that putting all of these things in orbit will increase the amount of debris that's already circulating around the Earth.

而且，是，有人担心把所有这些东西放入轨道会增加已经在地球周围流通碎片数量。

Scientists say it's filled with ice that flows toward the Antarctic coast.

科学家们表示，冰流通过它流向南极海岸。

UNIDENTIFIED FEMALE: When people, if they get in coughing I roll the windows down in the back a little bit and kind of you know circulate the air around the car.

当人们咳嗽着上车时，我会将后车窗摇下来一点，使汽车周围空气流通起来。

By getting rid of the penny altogether, there is fear that it could create inflation.

便士退出流通可能会导致通货膨胀。

Others are concerned that if the flow of goods doesn't get back to normal soon, Americans might stop shopping because things are too expensive.

其他人则担心，如货物流通不能很快恢复正常，美国人可能会因为东西太贵而停止购物。

Their thick masonry walls insulated against the heat, and the vertical air shafts between the buildings give at least some airflow to stifling tenement rooms.

厚实砖墙隔绝外界热浪，楼栋之间竖向通风井，也能给闷热廉租公寓引入少量空气流通。

The other kind is so close to the real deal, it can only be printed on one side, otherwise, it could end up in circulation.

另一种就非常接近真正钞票，它只能印在一面一边，否则它可能最终流通进市场。