专家小组放弃阿司匹林预防心脏病的建议

stroke –n. a serious sickness caused when a blood vessel in your brain suddenly breaks or is blocked

benefit –n. a good or helpful result or effect

cholesterol –n. a substance found in the bodies of people and animals

blood clot –n. a mass of dried blood that sops the flow of blood in the body and that can cause serious health problems

ulcer –n. a painful area inside or outside the body

We want to hear from you. Write to us in the Comments section, and visit hxen.net.