1.SuddenLy的中文意思是：突然；忽然；猛地；骤然。

2. 例句：‘Listen!’ said Doyle suddenly.“你听！”多伊尔突然说。

3.I suddenly realized what I had to do.我突然明白我该怎么做了。

4.It all happened so suddenly.一切都来得那么突然。