Her angry outburst was totally unprovoked.
她的暴跳如雷完全是无理取闹。
They said the attack had been unprovoked.
他们说那次攻击是无缘无故的。
They can become suddenly irritable or explosive, even when unprovoked.
即使在无任何原因时，他们也会变的易怒或爆燥。
They can become suddenly irritable or explosive, even when unprovoked.
即使在无任何原因时，他们也会变的易怒或爆燥。
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