early 15c., from Late Latin turbulentia "trouble, disquiet," from Latin turbulentus (see turbulent). In reference to atmospheric eddies that affect airplanes, by 1918. Related: Turbulency.
例文
1. We experienced severe turbulence during the flight.
私たちは飛行中に強い気流に遭遇した。
2.The turbulence in his life has come from accidents and illness.
彼の一生の波動は病気と不測の事故から来ている。
3.The world situation is characterized by turbulence and intranquility.