sudden例句：
The populace at large is/ are opposed to sudden change.
民眾普遍反對突然的改變。
Educational practice is liable to sudden swings and changes
教學實踐中經常會出現突然的變化與改革。
What is the motivation behind this sudden change?
這種突然轉變背后的動機是什么？
The sudden noise made her start.
突如其來的聲音嚇了她一跳。
His heart gave a sudden leap when he saw her.
他看見她時，心猛地一跳。