adj. 突然的，未预见到的,急躁的，仓促的,快的，迅速的,急剧
sudden可以用作形容词
sudden的意思是“突然的,忽然的,迅速而意外的”,指事先没有预料到事情会发生,所以当事情发生时使人感到很意外。
all of a sudden的意思是“突然地,出乎意料地”,常用于口语中。也常用on a sudden,意思与all of a sudden相同,但不如all of a sudden正式或常见。
sudden用作形容词的用法例句
His sudden death upset everybody.他的突然去世使大家深感悲伤。
A sudden smile illuminated her face.突然的微笑使她容光焕发。
She was dazzled by her sudden success.突然的成功使她感到迷惘。
1、"I think I'll try a hypnotist," I said with sudden resolution.
“我会找催眠师试试，”我突然坚决地说。
2、He felt a sudden sense of calm, of contentment.
他突然感到一种安宁和满足.
3、The sudden onset of winter caused havoc with rail and air transport.
冬天的突然降临让铁路和航空运输系统陷入混乱。