Question

fiend 【fiend】n.恶魔；穷凶极恶的人The natives thought the explorer was possessed by a fiend.土著们认为探险家被恶魔附身。

Accepted Answer

[fiːnd] 
fiendan evil supernatural being
A fiend is a person or monster who has evil plans in their mind.  They may try to steal your soul, or perhaps just want to hurt your feelings.  Either way, fiends never mean you well.
The Old English root word for fiend translates to “an enemy, the devil, a demon”: three cruel characters that would delight in causing you harm.  Watch out for fiends like them.  A less wicked type of fiend is one who loves something so much that it’s scary, like a sugar-addicted jelly bean fiend, or a snowboarding fiend.  Fiend is a good example of the “i before e except after c” rule, so follow that and you’ll always spell it right.
All forms of 'fiend' will appear on average once every 624 pages.fiendfiendishfiendishly

Front	fiend
Pron	[fiːnd]
Back	【fiend】 n.恶魔；穷凶极恶的人 The natives thought the explorer was possessed by a fiend. 土著们认为探险家被恶魔附身。
Vocab	fiendan evil supernatural being A fiend is a person or monster who has evil plans in their mind. They may try to steal your soul, or perhaps just want to hurt your feelings. Either way, fiends never mean you well. The Old English root word for fiend translates to “an enemy, the devil, a demon”: three cruel characters that would delight in causing you harm. Watch out for fiends like them. A less wicked type of fiend is one who loves something so much that it’s scary, like a sugar-addicted jelly bean fiend, or a snowboarding fiend. Fiend is a good example of the “i before e except after c” rule, so follow that and you’ll always spell it right. All forms of 'fiend' will appear on average once every 624 pages. fiend fiendish fiendishly

Fiend Evil Fiːnd N.恶魔；穷凶极恶的人 Natives Thought Explorer Possessed