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

硬膜下隙在大脑静脉流中起重要作用。

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。

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

上、下腔静脉均为静脉，运送血液流到心脏。

Increased blood flow to the brain is helpful.

增加血液流大脑是有益的。

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。

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

流出来的并不是纯海水。

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。

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

在潮水流之前他们只有半小时。

It’s a crucial if temporarily backward step.

这是水暂时性流的重要一步。

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。

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。

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静脉血管中，并最终返心脏。

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

“我们可以通过增加国内采购和生产来鼓励它们流，”她说。

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。

Portal hypertension can also cause blood to back up into the spleen causing congestive splenomegaly, meaning the enlarged spleen.

门静脉高压症还能导致血液向脾脏流，造成充血性脾肿大，即扩大的脾。

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

浅表静脉流至深静脉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.

锁骨下静脉受压造成手臂和手部血液流减少，导致水肿。

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

最终，静脉窦中的血流流至颈内静脉，流至心脏。

Before they had crossed halfway, the water returned in a wave higher than anyone had ever seen, drowning the attackers.

士兵们还没走到一半，高过以往见过的流水波就淹死了这些进攻者。