This is seen by many as a battle for the soul of the digital frontier.

普遍认为这是一场数字前沿的灵魂之战。

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the battle took place over some land that was being contested on a frontier and they would go down to that area and pick a spot and there they would go and fight with one another.

战争爆发是为了争夺国境线上的争议地区,他们会到那个地区,挑好地方,然后在那里大打出手

耶鲁公开课 - 古希腊历史简介课程节选

The final frontier in this battle is the cloud.

FORBES: Has Apple Fallen?

The former cattle rancher, Grateful Dead lyricist and founder of the Electronic Frontier Foundation has been engaged in that battle for 25 years, longer than many of the young Internet users opposing the controversial Stop Online Piracy Act (SOPA) have been old enough to sit at a keyboard.

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Over the last month, the authorities have turned up the heat on traffickers, closing frontier crossings and sending in troops and helicopter gunships to battle smugglers.

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