sudden

a sudden change in the weather.天气的突然变化

Life is cruel, she thought, with a sudden rush of anger..生活真残酷，她想，心头突然涌上一股怒气。

a sudden movement.突然的一动

Her death was sudden..她的死很突然。

of a sudden,突然

sudden death,n. 猝死；突然死亡；[体]突然死亡法（决赛中的一分或一球定胜负法）

sudden change,突变；（滴定）突跃

sudden cardiac death,心脏性猝死；突然心脏死

sudden huge profits,暴利

sudden attack,奇袭

sudden fall,突然落下；骤退

sudden infant death syndrome,婴儿瘁死综合症

sudden cardiac arrest,心脏骤停

sudden burst,突然爆炸；猝发