sudden

1. 突然的,忽然的,迅速而意外的 happening, coming or done quickly and unexpectedly

• sudden attack突然袭击

• sudden in one's action行动突然

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

1. His sudden death upset everybody.
   他的突然去世使大家深感悲伤。
2. A sudden smile illuminated her face.
   突然的微笑使她容光焕发。
3. She was dazzled by her sudden success.
   突然的成功使她感到迷惘。
4. He gave me a fright by bursting into a sudden laughter.
   他突然大笑起来，吓了我一跳。
5. Their sudden attack made us more aware of the danger around us.
   他们突然的攻击使我们更加注意我们周围的危险。
6. His rise to power was very sudden.
   他的掌权很令人意外。

1. The boy began crying all of a sudden.
   那男孩忽然哭了起来。