monomania
词根词缀：
monomania n. 偏狂症，狂热病
mono 单个 + mania …癖，…狂 → 为一件事而狂热 → 偏狂症
pyromania n. 纵火狂，放火癖
pyro 火 + mania …癖，…狂 → 纵火狂，放火癖
数据来源：新东方英语词汇速记大全
相关例句：
In "Moby Dick," Captain Ahab's pursuit of the whale whale is an example of monomania.
在「鲸记」，亚哈布船长的追逐白鲸是偏执狂的一个例子。
Audley, and do you select me as the victim of your monomania?
难道你选定我作你那躁狂症的牺牲品吗？
"It is the sort of malady which we call monomania," said the doctor.
“这种病我们叫做偏执狂。”医生说道。
He carried the others off their feet. "It is the sort of malady which we call monomania," said the doctor.
他叫大家发起狂来。这种病我们叫做偏执狂。医生说道。
The western world was indeed black with homicidal monomania.
西方世界的确被杀人狂抹黑了。
But the monomania of gamers here has also led to concerns about addiction and the potential harm caused by spending too much time playing games. Occasionally, news articles report on a gamer's dying of exhaustion in a PC bang after playing for days without rest.
但韩国游戏玩家的狂热也引发了关于网瘾以及长期玩游戏的潜在危害的担忧。游戏玩家为了玩游戏数日不休导致猝死的报道不时会出现在媒体上。