一转眼

in the blink of an eye

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

see 轉文|转文[zhuai3 wen2]

to turn / to change direction / to transfer / to forward (mail) / (Internet) to share (sb else's content)

to revolve / to turn / to circle about / to walk about / classifier for revolutions (per minute etc): revs, rpm / classifier for repeated actions

in a flash / in the blink of an eye / to glance

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