通常都是在安静的环境下练习，从来没有公开表演过。

Usually, it was practised in quiet setting and never for public performance.

youdao

他从来没有在舞台上表演过，他非常激动。

He had never acted on stage before and he was very excited.

youdao

表演过火，效果反而不好。

Overacting will only spoil the effect.

《新英汉大辞典》

So that he knew a lot about music, but he never performed or never was active as a musician.

他对音乐很懂，但他从来没有,表演过或者成为一个积极的音乐人。

麻省理工公开课 - 电影哲学课程节选

I did a performance there for Prince Philip's 75th birthday, which was 15 years ago, actually.

我为菲利普亲王的七十五岁生日表演过，这是十五年前的事了。

记忆犹新的作品 - SpeakingMax英语口语达人

And I'm in shows like musicals and plays.

我也参加过音乐剧和戏剧的表演。

和戏剧专业的朋友 - SpeakingMax英语口语达人