If he meets your army, whichever pass he chooses, if he meets your army defending a pass, then he'll lose another battalion.

如果他碰巧遇到了你设防的途径,无论崎岖之途还是平坦之途,他还要再损失一个营的兵力

耶鲁公开课 - 博弈论课程节选

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

Well if you're not defending the easy pass, he doesn't lose anyone, and if he attacks through the hard pass he's going to lose at least one battalion.

如果你没有在平坦之途设防他兵力不减,然而如果他从崎岖之途进军,那么他将至少损失一个营

耶鲁公开课 - 博弈论课程节选

If you were to defend the easy pass and he goes through the easy pass, he will get into your country with one battalion and that's the same as he would have got if he went through the hard pass.

如果你们都选择的是平坦之途,那么他攻入你的国家时他只剩一个营,这与他选择崎岖之途别无二致

耶鲁公开课 - 博弈论课程节选