Correct

成风

/ chéng fēng / 
Strokes

Definition

wind

Example

As a Verb

become a common practice; become popular; become the order of the day; run rampant

1
Dàxué
大学
lǐ
里
zēng
曾
jíyóu
集邮
chéngfēng
成风
  
。

Stamp collecting was once popular in universities.