1. The International Shark Attack File describes shark attacks as either provoked or unprovoked. 国际鲨鱼攻击档案形容鲨鱼攻击要么是受到了挑衅，要么是无故的。
2. Because of this unprovoked dastardly attack by Japan, I ask that the Congress declare a state of war. 因为日本发动了这一卑鄙的、衅式的袭击，我要求国会宣布全国进入战争状态。
3. Scorn, bitterness, unprovoked malignity, gratuitous desire of ill, ridicule of whatever was good and holy, all awoke to tempt , even while they frightened him. 轻蔑、狠毒、无缘无故的恶言秽行和歹意；对善良和神圣的事物妄加嘲弄，这一切全都会唤醒起来，虽说把他吓得要命，却仍在诱惑着他。
英英解释
adj.
1. occurring without motivation or provocation
