一弹指顷

yī tán zhǐ qǐng

a snap of the fingers (idiom); in a flash

in the twinkling of an eye

一

yī

one

弹

tán

to pluck (a string)

指

zhǐ

finger

顷

qǐng

unit of area equal to 100 畝|亩[mu3] or 6.67 hectares