onstage

在舞台上、上台

She took a deep breath and walked onstage to loud applause.

她深吸一口气，在热烈的掌声中走上舞台。

公开地、在众人面前引申

Politicians are always onstage, even during a quiet dinner.

政治人物随时都在众人面前，连安静吃顿饭也一样。

舞台上的、台上的

Her onstage energy is completely different from her quiet personality.

她在台上的活力和私下安静的个性完全不同。