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m A cquired I mmune d eficiency S yndrome ( 后天性免疫缺陷综合症 ). m It is a disease that limits the body’s ability to fight _ 1_ _感染. A person with AIDS has a very weak _ _2_ _ _ _3 _(免疫系统), turning normally mild or rare _ _4_ _(疾病) into potentially _ 5 __ (致命的)conditions. m AIDS is different from HIV in that the former usually causes death while HIV may lead to AIDS.