缓解症状的药物并非治愈疾病的药物。
Drugs that mask symptoms aren't the same as medicine that cures the disease.
药物治疗的目标是针对疾病缓解症状，使受折磨的人能感觉舒适，重新正常生活。
The goal of drug therapy is to treat the illness and handle its symptoms so the afflicted person will feel well enough to resume a normal daily routine.
越来越多的人因心脏疾病，糖尿病和癌症而忍受疼痛，但是很多用来缓解疼痛的药物并不是完全有效或者有危害性的副作用。
More people suffer from pain than from heart disease, diabetes and cancer combined, but many of the drugs used to relieve suffering are not completely effective or have harmful side effects.
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