1
a fiend for [noun/gerund]
表示对某事物极度热衷的人。
He is a fiend for exercise.
他是个锻炼狂。
恶魔；凶恶的人
fiends — plural of fiend
先理解核心含义，再看它在真实句子里的用法。
恶魔；凶恶的人
a cruel wicked and inhuman person
He is a fiend for exercise.
他是个锻炼狂。
魔鬼或恶魔；恶毒的或魔鬼般的存在；邪灵。
A devil or demon; a malignant or diabolical being; an evil spirit.
残酷邪恶无人性的人
a cruel wicked and inhuman person
非常邪恶的人。
A very evil person.
邪恶的超自然生物
an evil supernatural being
The villain in the story was a fiend who enjoyed hurting others.
故事里的反派是个以伤害他人为乐的恶魔。
Only a fiend would leave a dog out in the freezing rain.
只有恶魔才会把狗留在冰冷的雨中。
She called her cruel boss a fiend after he fired a sick employee.
在解雇一名生病的员工后，她称自己残忍的老板为恶魔。
表示对某事物极度热衷的人。
He is a fiend for exercise.
他是个锻炼狂。
常用于复合词，表示对某物上瘾或痴迷的人。
She is a coffee fiend.
她是个咖啡迷。
指邪恶或残忍的人。
The villain was a fiend.
那个恶棍是个魔鬼。
Not this
He is fiend.
Use this
He is a fiend.
错误：缺少不定冠词。'fiend' 是可数名词，在单数形式前需要加 'a' 或 'an'。改正后句子语法正确。
Not this
He is my fiend.
Use this
He is my friend.
错误：拼写混淆。'fiend' 意为魔鬼或能手，而 'friend' 意为朋友。此处语境应为朋友，故用 'friend'。改正后意思准确。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
披着人皮的恶魔；人面兽心的家伙
He seemed kind, but his neighbors knew he was a fiend in human form.
他看上去很和善，可邻居们都知道他是个人面兽心的家伙。
地狱来的魔鬼
The villagers believed the creature was a fiend from hell.
村民们相信那个怪物是从地狱来的魔鬼。
填字游戏狂迷
My uncle is a crossword fiend and solves one every morning.
我叔叔是个填字游戏狂迷，每天早上都要解一道。
吸毒成瘾者
The clinic helps drug fiends break their addiction.
这家诊所帮助吸毒成瘾者戒除毒瘾。
毒品成瘾者；瘾君子
The old story described a street corner filled with dope fiends.
那个老故事描述了一个满是瘾君子的街角。
性欲狂魔；好色之徒
The headline called the suspect a sex fiend.
标题称这名嫌疑人是性欲狂魔。
极注重健康的人；健身狂
My brother is a health fiend and never skips his workout.
我哥哥是个健身狂，从不落下锻炼。
Use fiends naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
friend去掉r就是fiend（恶魔）——恶魔没有朋友，记住friend少了个r。
语域：mixed 常见场景：religious and literary texts、crime news and serious writing、everyday talk about interests fiend 的语体随义项变化：指“魔鬼/恶魔”时多用于宗教或文学作品，较正式；指“凶恶的人”时常见于新闻或严肃叙述；指“狂热爱好者”（如 coffee fiend）时偏口语化。使用时请根据上下文判断。
Genuine rhymes: cleaned, screened, weaned, and greened rhyme with fiend /fiːnd/. Be careful: friend /frɛnd/ and field /fiːld/ look similar but have different vowels or endings, so they do not rhyme.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.