The threat of nuclear escalation remains.

核升级的威胁依然存在。

《柯林斯英汉双解大词典》

In the second half of the millennium, in the south around the city of Uruk, there was an enormous escalation in the area occupied by permanent settlements.

在这一千年中的下半叶，在乌鲁克城南方附近，被永久定居点占用的地域在大幅增加。

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The U.S. military wants to avoid the graduated escalation that marked the Vietnam War.

美国军方希望避免类似越南战争那种逐步升级的态势。

《柯林斯英汉双解大词典》

Some experts see parallels between the Afghan strategy debate and the escalation of U.S.involvement in the Vietnam War in the 1960s.

VOA: standard.2009.10.09

At least three were killed in what's being viewed as an escalation in Mexico's already raging drug war.

VOA: standard.2010.07.20

"The policy of assassination, the policy of escalation from the Israeli side is ruining every chance of peace,".

VOA: standard.2009.12.26

All across our base, soldiers sat in their rooms, listening for signs of escalation.

NPR: Spring a Season of Dread for Troops in Afghanistan

Meeting with Van der Veer in the Hague last November, Putin reportedly criticized the cost escalation.

FORBES: Companies, People, Ideas

And if that can be accomplished through de-escalation, that would obviously be a positive step forward.

WHITEHOUSE: The White House