The product is at the design stage.
產品處于設計階段。
She stepped gracefully onto the stage.
她步態優雅地走上舞臺。
I didn't have a good view of the stage.
我看不清舞臺。
The stage was lit by bright spotlights.
舞臺上有明亮的聚光燈照亮著。
He left the stage to prolonged applause.
他在經久不息的掌聲中退下了舞臺。