freak
[frik]
n.
反常的事;
突然的念头;
怪异物;
[俚]吸毒（成瘾）者；颓废派成员；性变态者;
vi.
胡闹，开玩笑;
行事任性怪诞;
[美国俚语]（尤指在服用迷幻药后）变得极度兴奋;
[俚语]（像吸过毒似的）行为反常;
vt.
激怒;
[俚语]使采取不合常规的生活方式;
[俚语]使处于幻觉剂影响之下;
例句:
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This has also been picked up by Torrent Freak.
来自BBC
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Weir broke his leg in a freak accident playing golf.
韦尔因为一次打高尔夫时发生的离奇事故折断了腿。
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A freak wave had buckled the deck.
突然掀起的巨浪打弯了甲板。
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By some freak of fate, she won an enormous sum of money.
她不知交了什么好运, 赢了一大笔钱.
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Freak weather conditions are a constant headache for skippers.
来自Yachting World
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Chaos theory by definition cannot predict freak events.
来自SA