downswing

1. a downward swing¹
2. downturn
   A downswing is a sudden downward movement in something such as an economy, that had previously been improving.

Industry may disappear if the manufacturing economy remains on a downswing.

Footnotes

1. a swinging movement or rhythm 摆动；挥动；转动；强劲节奏 He took a wild swing at the ball. 他对准球猛地挥拍一击。 the swing of her hips 她臀部的扭动 ↩