微笑心法和不倒翁简介：Hearing the sound of cannons, the Mongolian soldiers behind Snowball were nervous. They rolled the snowballs, but they didn't know whether the snowballs could really block the Ming army's cannons?
Hearing the sound of cannons, the Mongolian soldiers behind Snowball were nervous. They rolled the snowballs, but they didn't know whether the snowballs could really block the Ming army's cannons?
