The statement describes the South's alleged actions as "premeditated moves to deliberately escalate tension in the waters."

VOA: standard.2009.10.15

So as you can see, as we escalate the problem difficulty, the difference between the good method and the not quite as good method gets bigger and bigger and bigger.

如你所见，当我们处理更复杂的,问题的时候，优良的算法,和并不那么好的算法之间的,差异会变的越来越大，这一点很重要。

麻省理工公开课 - 计算机科学及编程导论课程节选

Professor Yang says the situation could easily escalate.

VOA: standard.2010.05.27

"And like Lyndon Johnson he has this really ominous problem, which is if you escalate in Afghanistan and we end up in that swamp that will over time be a kind of constant drain on support and enthusiasm among young people, among minorities,among liberals, among progressives and it will really sap the president's ability to continue to energize this broad agenda,".

VOA: standard.2009.12.29