事故: malfunction; trouble; fault; failure; mistake; accident; mishap 短语和例子造成事故 bring about an accident; 减少事故 cut down accident; 预防事故 provide against accidents; 交通事故 traffic accident; 一次事故使他双目失明
危险: dangerous; perilous; risk; peril; danger 短语和例子发出危险信号 send out a danger signal; 冒生命危险 at the risk of one's life; peril one's life; 脱离危险 out of danger; 在危险中 in danger of; in the time of peri
