突然出現的用法和樣例：
例句
-
他在聚會中突然出現，使她心煩意亂。
She was agitated by his sudden appearance at the party. -
警察突然出現，小偷就逃跑了。
The sudden appearance of a policeman caused the thief to run away. -
他總是在極不可能出現的地方突然出現。
He keeps bobbing up in the most unlikely places. -
工作中突然出現困難。
A difficulty has cropped up at work. -
由於發動機突然出現故障，飛行員不得不（在愛爾蘭海上）緊急降落。
A sudden engine failure forced the pilot to ditch (in the Irish Sea).
