preemptKK [ˋpriˏɛmpt] /ˈpɹiˌɛmpt/发音动词1先发制人、抢先阻止、防患未然The company cut prices to preempt a rival's new product launch.公司降价,先发制人阻挡对手新产品上市。2抢先取得、先占、抢先一步He preempted the best seats by arriving an hour early.他提早一小时到,抢先占了最好的位子。3取代、凌驾于Federal law preempts any conflicting state regulation here.在这方面,联邦法律的效力凌驾于相抵触的州法规之上。4插播取代、中断播出美式,指节目The network preempted the drama for a live news conference.电视台临时取消该档连续剧,改播记者会实况。用这个字练口说→