顽症的英文：
chronic and stubborn disease; persistent ailment
Cancer is a kind of persistent ailment.
癌症是一种顽症。
Conceit is the most incurable disease that is known to the human soul
骄傲自满是精神上最不可救药的顽症
Police brutality and unfair adjudication are intrinsic stubborn diseases of the United States
警察滥施暴力和司法不公是美国的一个顽症。
adj. （病）慢性的；（人）久病的；长期的，不断的；惯常的，习惯性的
My brother has chronic bronchitis.
我的哥哥患有慢性支气管炎。
There is a chronic unemployment problem in America.
在美国存在长期失业问题。
A chronic, whining complainer.
发牢骚的人老是嘀嘀咕咕抱怨的人
adj. 固执的，执拗的；难以去除的
There is no reasoning with such a stubborn man as Peter.
跟彼得这种固执的人讲理简直是不可能的事。
This stain is really stubborn.
这污垢去不掉。
Ingrain stubbornness of character.
天生固执的性格。
n. 疾病，不健全，病害，弊病，烦恼
v. 使有病，使不健全
Surgical disease, or the surgical response to disease is of similar antiquity.
外科疾病或对疾病的外科处理的历史同样久远。
Some diseases are presented by heredity.
有些疾病是由于遗传导致的。
ear bacterial disease of maize
玉米穗细菌病