为了抢占先机，他们在竞争对手之前发布了新产品。

They ___preempted their rivals by releasing the new product first.

紧急会议打断了我们原定的午餐计划。

The urgent meeting ___preempted our scheduled lunch plans.

她提前购买了限量版球鞋，抢先占有了最后几双。

She ___preempted the last few pairs of limited-edition sneakers by buying them early.