Well, what happens is one army is invading the land of the other.

好的,当一支军队侵入了对方的领土

耶鲁公开课 - 古希腊历史简介课程节选

If the invader chooses the hard pass he will lose one battalion of his army simply in getting over the mountains, simply in going through the hard pass.

如果侵略者选择崎岖的路,仅在穿越阿尔卑斯山的途中,他就要损失一个营的兵力,这就是选崎岖之路的代价

耶鲁公开课 - 博弈论课程节选

But the difficulty is, if you take your left flank and move it out here so you can flank this guy, one of two things has to happen to your army.

但困难的是,如果你把左翼移到这里,你可以进攻敌人的侧翼,你的军队会面对下面两种情况

耶鲁公开课 - 古希腊历史简介课程节选