demon

名词 demon:

1. one of the evil spirits of traditional Jewish and Christian belief
   同义词：devil, fiend, daemon, daimon
2. a cruel wicked and inhuman person
   同义词：monster, fiend, devil, ogre
3. someone extremely diligent or skillful

1. He's very violent: it's the demon drink, you know.
   他大撒酒疯，你要知道就是因为喝了那种酒。
2. Her husband is a demon for work.
   她丈夫工作起来精力过人。
3. That child is a little demon.
   那个孩子是个小捣蛋鬼。

de.mon

n.（名词）
An evil supernatural being; a devil.
恶魔：罪恶的超自然的人物；魔鬼
A persistently tormenting person, force, or passion:
邪恶的事物，邪念：不断驱使人的人、力量或情感：
例句：
the demon of drug addiction.
吸毒成瘾

One who is extremely zealous, skillful, or diligent:
精力（或技巧）胜人一筹的人：特别热情、熟练或勤奋的人：
例句：
worked away like a demon; a real demon at math.
象玩命一样不断努力地工作；数学天才

Also dae.mon or dai.mon [do.môn.] Greek Mythology An inferior deity, such as a deified hero.
也作 dae.mon 或 dai.mon [do.môn.] 【希腊神话】 半神：地位稍低的神，例如奉若神灵的英雄
Also dae.mon or dai.mon [do.môn.] An attendant spirit; a genius.
也作 dae.mon 或 dai.mon [do.môn.] 守护神；伴随的神

来源：
Middle English
中古英语
from Late Latin daemôn
源自 后期拉丁语 daemôn
from Latin [spirit]
源自 拉丁语 [神灵]
from Greek daimôn [divine power] * see d3-
源自 希腊语 daimôn [神的力量] *参见 d3-