请列出2009年你参加过的比赛。

Please name those you raced in 2009.

youdao

这是我一生中参加过的最愚蠢的茶会！

It's the stupidest tea-party I ever was at in all my life!

youdao

而且这也是我参加过的组织最好的一次会议。

It also happened to be one of the best organized conferences I've ever attended.

youdao

And I was on a bunch of different... and also different communities... But one of them was really my athletics.

恩，我以前参加过好多不同的。,社团活动。,但是体育方面的特长始终是核心。

普林斯顿公开课 - 人性课程节选

I don't know, I've been to parties like that because we travel a lot with school.

我不知道，我参加过那样的派对，因为我经常跟着学校旅行。

在黎巴嫩开派对 - SpeakingMax英语口语达人

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