es·ca·late /ˈɛskəˌlet, &dɪvɪdɛ;kjə-/ (vi.)逐步擴大,逐步升高,逐步增強(vt.)使逐步上升
escalate v : increase in extent or intensity; "The Allies escalated the bombing" [syn: intensify, step up] [ant: de-escalate]