咱粗俗点的翻译大意吧：
Let's appoint a time to fight together day and night,and our civilian hero to beat them on the right time,
therefore the enemy will not be too difficult to be defeated .
傻了,原来是要中文翻译的：
约定日期一齐奋击,有进无退,日夜谋取敌军.百姓中间的英雄豪杰又趁机在他们中间出没,这样做的话那敌军是不难击退的.