People often confuse undertow, which is actually a strong backwash and rip currents.

人们经常混淆流和离岸流，流其实是一种强烈的反冲力。

The subdural space plays a major role in venous blood drainage in the brain.

硬膜下隙在大脑流中起重要作用。

Increased blood flow to the brain is helpful.

血液流大脑是有益的。

The chocolate fries are McDonald's Japan’s attempt to reverse poor sales.

麦当劳试图以新菜单让顾客流。

But it's not pure seawater that comes back out.

但流出来的并不是纯海水。

They have just half an hour before the tide comes back in.

在潮水流之前他们只有小时。

In turn causing the water to back up potentially leading to flooding.

从而导致水流，并可能引发洪水。

It’s a crucial if temporarily backward step.

这是水暂时性流的重要一步。

Eventually, the blood in the venous sinuses drains into the internal jugular vein and returns to the heart.

最终，窦中的血流流至颈内，流至心脏。

Both vena cavas [sic] are veins, which bring blood towards the heart.

上、下腔均为，运送血液流到心脏。

As the sea steadily flows back, it lifts the huge blocks of ice over their heads.

当海水逐渐流会托起千斤重的冰块。

And so, warm water is spilt all the way over to the east side of the Pacific.

表层暖水会流至太平洋东海岸。

And all of the goods they would end up producing would flow back to New Orleans.

他们生产的所有商品最终都会流到新奥尔良。

Now, deoxygenated blood then feeds back into larger and larger veins, and goes back to the heart.

之后，脱氧的血液逐级流到血管中，并最终返心脏。

" We can encourage them to return by requiring more domestic sourcing and production, " she said.

“我们可以通过国内采购和生产来鼓励它们流，”她说。

Return flow of the water down the beach is called backwash, which is commonly called undertow when the pull is strong.

水流顺着海滩流到海洋中被称为流，如果推力很大的话，通常被称为退浪。

Superficial veins drain blood into deep veins, which rely on the skeletal muscle pump to move blood forward.

浅表流至深系统是通过骨骼肌的肌肉泵作用完成的。

Compression of the subclavian vein decreases blood drainage from the arm in hand, leading to edema.

锁骨下受压造成手臂和手部血液流减少，导致水肿。

What is more, the repatriation of profits by American firms would draw resources away from their subsidiaries abroad.

更为重要的是，美国企业的利润流会将各种资源抽离它们的海外分公司。

Finally, we will make it easier for companies to bring back trillions of dollars that they are now keeping overseas.

最后，我们将使企业数万亿海外资金的流更容易。