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》
2
"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。
3
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.