疑难杂症的英文：
difficult and complicated disease

difficult是什么意思：
adj. 困难的；执拗的；不易相处的
  • The exercise is that difficult!
    练习题那么难！
  • You must admit the task to be difficult [ that the task is difficult ].
    你应当承认这项任务是艰巨的。
  • You must admit the task to be difficult [that the task is difficult].
    你必须承认这项任务是困难的。
complicated是什么意思：
adj. 结构复杂的
  • The sceptic knows that life is complicated.
    怀疑论者却深知人生是如此错综复杂、扑朔迷离。
  • Involved or intricate, as in structure; complicated.
    复杂的在结构中牵扯较多的或错综复杂的；复杂的
  • There is no need to complicate matters.
    没有必要使问题复杂化。
disease是什么意思：
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

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