a state of violent disturbance and disorder (as in politics or social conditions generally); "the industrial revolution was a period of great turbulence" 激しい騒乱や騒動の状態（政治的または社会的情勢などの場合が一般的）。
日/英 »
【下位】 anything characterized by abrupt and extreme changes (especially up and down); "the economy has been on a roller coaster all year" 突然の、そして、極端な変化（特に上下に）が特徴のもの。
日/英 »
