vt.升级
vi.升高；逐步升级
Shouting may seem necessary, but it tends to escalate conflicts. 大喊大叫也许比较容易，但是它容易导致使冲突升级。
The government is deliberately escalating the war for political reasons. 政府出于政治目的蓄意使战争逐步升级。
House prices have escalated rapidly. 房价已急速上涨。
