如何用和值判断大小单双

简介：The two large and small fortresses are ten miles apart. They look after each other and respond to each other. They have the effect of getting twice the result with half the effort. As long as they are cautious and tightly defended, even if Jianlu uses a hundred thousand troops to attack fiercely, they will not be able to capture it in less than a month. And as long as they hold on for twenty days and slow down Jianlu's advance, the Ming Dynasty's strategic goal will be achieved.