es.ca.late
v.(动词)es.ca.lat.ed,es.ca.lat.ing,es.ca.lates v.tr.(及物动词)To increase, enlarge, or intensify:增大,增强:使逐步增强、扩大、升级:例句:escalated the hostilities in the Persian Gulf.使波斯湾的战争升高
v.intr.(不及物动词)To increase in intensity or extent:逐步升级:有级别或程度上增长:例句:.a deepening long-term impasse that is certain to escalate.(Stewart L. Udall).(事态)正在加深为长时间的僵局.(斯图尔特L.尤德尔)
来源:Back-formation from escalator 源自 escalator的逆构词
【引伸】
es.cala.tion
n.(名词)es.calato.ry