大だい転てん換かん

noun

drastic change; major turnaround; sea change

Refers to a fundamental, large-scale shift in direction, policy, or situation. Often used in business, politics, or social contexts.

• 会かい社しゃは経けい営えい方ほう針しんの大だい転てん換かんを発はっ表ぴょうした。