We have already succeeded in working out ground rules with the Department of Defense.

我们已和国防部成功地制定出了基本原则。

《柯林斯英汉双解大词典》

You must set up an airtight base defense immediately, blocking the two base access roads at their chokepoints (2 and 3) and putting defense on the high ground overlooking both chokes.

你必须建立一个密闭的基地防御，挡住了两个基地在敌军的阻塞点(路2号和3号)、临河高地的防守上都化油器。

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The MUOS Ground System provides communications and controls interfaces between the MUOS satellites and U.S.Department of Defense Earth-based communication networks.

MUOS地面系统在MUOS卫星和美国国防部地基通信网络之间提供通信和控制界面。

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Next to the burial ground is the Defense Department headquarters at the Pentagon.

VOA: special.2009.05.25

The U.S.defense secretary has rejected suggestions for a more limited approach emphasizing air strikes over troops on the ground.

VOA: standard.2009.09.22

Florida Democratic State Rep. Alan Williams has introduced a bill in the legislature that would do away with the Stand Your Ground defense, which law enforcement personnel and district attorneys have said makes their job harder in prosecuting shootings.

CNN: Trayvon Martin did not die in vain

If Zimmerman initially provoked the deadly encounter, then he cannot invoke any "stand your ground" defense.

CNN: SHARE THIS

First, while everyone continues to focus on Zimmerman and whether he will invoke a Stand Your Ground law defense, efforts are under way in the Florida Legislature and other states to get rid of such laws, or change them.

CNN: Trayvon Martin did not die in vain