The function of the heart is to pump blood through the body.

心脏的功能就是把血液输往全身。

《牛津词典》

"As lungs get progressively worse, the ability of the body to compensate goes down and the heart can't pump strongly enough," says Norman Edelman of the American lung Association.

“当肺部日益恶化时，机体代偿能力下降，心脏泵血机能不够强”，美国肺协的诺曼·艾得曼说。

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A human heart, by contrast, has four chambers. Two of these pump blood to the lungs, where it picks up oxygen, then the other two pump this oxygenated blood throughout the body.

相比之下，人的心脏只有四个心室，其中的两个心室收缩将血液压进动脉输送到肺部，在那里吸收氧气，放出二氧化碳，而另两个心室则将完成气体交换后的血液输送到到全身。

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Pfizer, Eli Lilly, Bristol-Myers Squibb, AstraZeneca and others are testing drugs that would reduce inflammation indirectly by raising the "good" HDL cholesterol that helps the body pump fat out of the arteries.

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The challenge will be to push the body to pump out these antibodies rather than the more specific ones aimed at the ever-changing portions of HIV.

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