[<< wikibooks] English-Hanzi/The narrowing of the coronary arteries reduces the supply of oxygen-rich blood to the heart
The narrowing of the coronary arteries reduces the supply of oxygen-rich blood to the heart, which is more clear during heavy exercise. For some people, this can cause severe symptoms, while others have no symptoms at all.
冠状动脉的狭窄减少了向心脏供应的富氧血液,这在剧烈运动中更为明显。 对于某些人来说,这可能会导致严重的症状,而其他人则根本没有症状。