我已经参加过了许多舞蹈比赛。

I have taken part in a lot of dancing competitions.

youdao

拜纳姆已经参加过了全程训练。

Bynum has yet to engage in a full practice.

youdao

我今年已经参加过了四月的樱花节和五月的民间音乐节。

I've been to the Cherry Blossom Festival (April) and the Folklife Music Festival (May) this year so far.

youdao

Those of you in my section will already be familiar with this.

参加过我课后辅导的同学,应该已经熟悉这个游戏了

耶鲁公开课 - 聆听音乐课程节选