他在演讲中把公司名字说错了，这真是个尴尬的失误。

Messing up the company name during his presentation was a real ___pratfall.

他在舞台上假装绊倒，来了个滑稽的屁股蹲儿，逗得观众哈哈大笑。

He pretended to trip on stage and did a hilarious ___pratfall, making the audience burst into laughter.