魔术师的表演是整场演出的高潮，观众们起立鼓掌长达五分钟。

The magician's act was the ___showstopper of the evening, earning a five-minute standing ovation.

技术故障成为了这次产品演示的拦路虎，导致活动被迫中断。

The technical glitch turned out to be a ___showstopper during the product demo, forcing an abrupt halt.