n. 突然, 忽然a. 突然的, 意外的, 快速的【法】 突然的, 忽然的相关词组: all of a sudden

suddenly/sudden/immediate/immediately/gradual/gradually/final/finally
记忆：
1. sudden [ 5sQdn] adj. 突然的, 意外的 His sudden appearance made me surprised.他的突然出现让我吃了一惊。 all of a sudden 突然
2. suddenly [5sQdEnlI] adv. 突然 The light went out suddenly. 灯突然熄灭了。
3. immediate [ i5mi:djEt] adj. 马上的，立刻的 The workers demanded an immediate answer. 工人们要求马上得到答复。
4. immediately [ i5mi:djEtli] adv. 马上，立刻 We’d better immediately set out immediately a message comes. 我们最好消息一到就出发。
5. gradual [ 5^rAdjuEl ] grade-ual adj. 渐渐的，逐渐的 It’s a gradual process to make progress in English.英语的进步是个逐渐的过程。
6. gradually [5^rAdjJElI] adv. 渐渐 He found his eyes gradually wet while seeing the film. 看电影的时候他发觉他的眼睛渐渐湿了。
7. final [ 5fainEl ] adj. 最后的 Who has the final say in your family?你家谁有最终发言权？
8. finally [5faInElI] adv. 最后 Everything became clear finally. 最后一切都水落石出。
9. eventually [I5ventjJElI] adv. 最后, 终于 We defeated Japanese in the war eventually.在战争最后我们打败了日本。
另类阅读：
Quantitative change is a gradual process while qualitative change is sudden. But it is not final. New quantitative change begins immediately.
轻松一刻：
"Dad, I will act as the big bear in the circus."
"Then what should I do?"
"You will act as the uncle who plays with the bear and keeps feeding delicious things into my mouth."