an act of unprovoked aggression无端的侵犯行为Stephen was stabbed to death in an unprovoked attack nearly five months ago.斯蒂芬在近5个月前无故遭到袭击，被捅死了。Her angry outburst was totally unprovoked.她的暴跳如雷完全是无理取闹。...
New York City seems to be a hot spot for flashers.对暴露狂来说,纽约看来是个好去处.Stop lights, backup lights , and four - way emergency flashers also aid in vehicle safety.停车灯 、 倒车灯和紧急闪烁灯也是有助于车辆安全的....