de·fla·tion /dɪˈfleʃən, ˌdi-/
放氣,縮小
deflation
放出空氣
deflation
n 1: (geology) the erosion of soil as a consequence of sand and
dust and loose rocks being removed by the wind; "a
constant deflation of the desert landscape"
2: a contraction of economic activity resulting in a decline of
prices [ant: inflation, disinflation]
3: the act of letting the air out of something [ant: inflation]