政府提前采取措施，防止了可能的交通拥堵。

The government ___preempted potential traffic congestion by taking early measures.

总统的紧急讲话突然插播，取代了原定的体育比赛直播。

The president's emergency speech ___preempted the scheduled live sports broadcast.

科技公司通过抢先申请专利来保护他们的创新成果。

Tech companies ___preempt patent rights to protect their innovations.

她抢先叫牌三黑桃以阻止对手的计划。

She ___preempted with a bid of three spades to block the opponents' plan.