过眼云烟

ephemeral (idiom)

surname Guo

to cross / to go over / to pass (time) / to celebrate (a holiday) / to live / to get along / excessively / too-

(experienced action marker)

eye / small hole / crux (of a matter) / CL:隻|只[zhi1],雙|双[shuang1] / classifier for big hollow things (wells, stoves, pots etc)

(classical) to say

surname Yun / abbr. for Yunnan Province 雲南省|云南省[Yun2 nan2 Sheng3]

cloud / CL:朵[duo3]

mist / smoke / cloud

cigarette or pipe tobacco / CL:根[gen1] / smoke / mist / vapour / CL:縷|缕[lü3] / tobacco plant / (of the eyes) to be irritated by smoke