The product is at the design stage.
产品处于设计阶段。
She stepped gracefully onto the stage.
她步态优雅地走上舞台。
I didn't have a good view of the stage.
我看不清舞台。
The stage was lit by bright spotlights.
舞台上有明亮的聚光灯照亮着。
He left the stage to prolonged applause.
他在经久不息的掌声中退下了舞台。