Happening when the other person had done nothing to cause it. This is the word English uses to place blame cleanly: an unprovoked attack means the victim did not start it, did not threaten, did not insult anyone first. It goes most naturally with attack, assault, violence, aggression, anger, and — very often — animals: an unprovoked shark attack, an unprovoked dog bite.

Happening when the other person had done nothing to cause it發生時，對方並沒有做任何事去引起它 This is the word English uses to place blame cleanly這是英文用來把責任講清楚的字 an unprovoked attack means the victim did not start it, did not threaten, did not insult anyone firstan unprovoked attack意思是受害者並沒有先動手、沒有先威脅、也沒有先侮辱任何人 It goes most naturally with attack, assault, violence, aggression, anger它最自然搭配的字是attack、assault、violence、aggression、anger and — very often — animals還有——非常常見的——動物 an unprovoked shark attack, an unprovoked dog bitean unprovoked shark attack（無端的鯊魚攻擊）、an unprovoked dog bite（無端被狗咬）

Behind it sits an old assumption worth noticing: that violence usually HAS a cause, that people hit back rather than hit first, so it needs saying specially when there was no cause at all. That is why the word carries such weight in news reports and courtrooms.

Behind it sits an old assumption worth noticing它背後藏著一個值得注意的舊假設 that violence usually HAS a cause暴力通常是有原因的 that people hit back rather than hit first人是被打才還手，而不是先動手 so it needs saying specially when there was no cause at all所以當完全沒有原因的時候，才需要特別說出來 That is why the word carries such weight in news reports and courtrooms這就是為什麼這個字在新聞報導和法庭上分量這麼重

It nearly always sits in front of a noun ("an unprovoked assault") or after a linking verb ("the attack was unprovoked").

It nearly always sits in front of a noun ("an unprovoked assault")它幾乎都放在名詞前面（'an unprovoked assault'） or after a linking verb ("the attack was unprovoked")或放在連綴動詞後面（'the attack was unprovoked'）

A milder everyday use exists for sudden bad moods — "an unprovoked outburst" from a normally calm person — where nobody is hurt but the same idea holds: it came from nowhere.

A milder everyday use exists for sudden bad moods也有比較溫和的日常用法，用在突然發脾氣上 "an unprovoked outburst" from a normally calm person「an unprovoked outburst」（無端的情緒爆發），指一個平常很冷靜的人突然發作 where nobody is hurt but the same idea holds這裡沒有人受傷，但概念是一樣的 it came from nowhere事情憑空冒出來