出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第122页（219字）
形容心情急切或形势紧迫，例火山爆发，熔岩已流出山口，情况急不可待，全村人必须立刻撤离此地。
The volcano erupted and lava began to flow．The situation was so serious that the whole village had to be evacuated at once．