惡性
malignant;pernicious;vicious;cut-throat
～犯罪案件vicious (or serious) crimes/～競爭cut-throat competition/～螺旋上升vicious spiral/～貧血pernicious anaemia /～事故serious (or fatal)accident/～通貨膨脹hyperinflation;galloping (or runaway,malignant) inflation; viciou inflation / ～循環(huán)vicious circle/ ～腫瘤malignant tumor;cancer