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心力衰竭是怎么回事? 我们知道,心脏在人体内起着极其重要的作用。当心脏收缩时,可推动血液沿着血管系统在全身循环流动,把氧和各种营养物质输送到全身各(?)官和组织中去。正常的心脏有非常大
What is going on with heart failure? We know that the heart plays an extremely important role in the body. When the heart contracts, it pushes the blood to circulate through the vascular system and circulate oxygen and various nutrients throughout the body and organs. The normal heart is very large