Before the assault they had used Google Earth to explore 3-d models of the target and determine optimal entry and exit routes, defensive positions, and security posts.

武装人员在袭击之前，利用“Google地球”制作了袭击目标的三维模型，设计了最佳的进出路径、防守位置以及安全岗位。

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Mark radios headquarters to set up ambushes along the exit routes from the park but it is too late.

马克通过电台命令总部在出公园的道路上设伏，但为时已晚。

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The maze problem is a classical programing question, Its aim is that to be solved out all routes from entry to exit of the maze by way of computer programming.

迷宫问题是一个经典的程序设计问题，它要求用计算机编程的方法求解出从迷宫的入口到出口的所有路径。

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The returning soldiers spent much of their final seven-month deployment breaking down the camps and gear accumulated over nearly a decade, doing everything from guarding exit routes to discarding old printers.

WSJ: U.S. Troops Fly Home to Joy, Relief

But NATO has told Yugoslav military leaders that they must get their 40, 000 troops out quickly, using designated assembly areas, retreat routes and exit points, to ensure they are not attacked by NATO or the Kosovo Liberation Army.

CNN: Movement seen on various paths to peace in Kosovo

Fifty Delaware National Guard troops were called up as emergency management officials urged some coastal residents in that state to evacuate, saying flooding would cut off exit routes.

CNN: March 7, 2013 -- Updated 0004 GMT (0804 HKT)