The adverb 纷纷 "one by one"
The adverb 纷纷 
indicates that an action is performed randomly or chaotically.
In a sentence, it is followed by a predicate which is expressed by a verb.
indicates that an action is performed randomly or chaotically.
In a sentence, it is followed by a predicate which is expressed by a verb.Examples
人们纷纷传说他将是未来的首相
There are rumors that he will be the future prime minister
rénmen fēnfēn chuánshuō tā jiāng shì wèilái de shǒuxiàng
各家报纸纷纷退避，不敢调查详情
Various mass media organizations didn't dare to investigate the details and backed down from their coverage
gè jiā bàozhǐ fēnfēn tuìbì, bù gǎn diàochá xiángqíng
大家纷纷报名参加
One by one, people signed up for the competition
dàjiā fēnfēn bàomíng cānjiā
纷纷 can be also be used as an adjective “numerous”, “confused”.
In some cases, it is followed by the particle 地 .
.Examples
树叶纷纷落到地上
The leaves are falling in large amounts
shùyè fēnfēn luò dào dìshàng
人们对儿童保育问题议论纷纷
There is a lot of talk about childcare issues
rénmen duì értóng bǎoyù wèntí yìlùn fēnfēn
去年夏天那座楼失火，惊慌失措的人们乱纷纷地向大门拥去
When the building caught fire last summer, people rushed to the gate in a panic
qùnián xiàtiān nà zuò lóu shīhuǒ, jīnghuāng shīcuò de rénmen luàn fēnfēn de xiàng dàmén yōng qù
Learn more