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
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