escalation [ˌeskə'leɪʃn]

例句:

• Any unexpected circumstance that arises may catalyze a sudden escalation of violence.
  任何突如其来的情况都可能造成暴力骤然升级。
  
• The US military wants to avoid the graduated escalation that marked the Vietnam War.
  美国军方希望避免出现类似于越南战争那样逐步升级的态势。
  
• The threat of nuclear escalation remains.
  核升级的威胁仍旧存在。
  
• Storey said an escalation into full-blown conflict is unlikely.
  来自VOA
• It's all about steady escalation towards a democratic miasma.
  来自BBC
• The escalation is seen as threatening Burma's reform process.
  来自VOA