The word "砸坏" is formed by combining the character "砸", meaning to smash, which is composed of the radical "石" (stone) indicating its association with hard objects and the phonetic component "匝" suggesting its pronunciation, with the character "坏", meaning broken or damaged, which is composed of the radical "土" (earth) and the component "不". Together, they create a verb where "砸" denotes the action of smashing and "坏" denotes the resulting state of damage, thus meaning to smash and break.